Journal of Colloid and Interface Science最新文献_第7页

Robust Pickering emulsions stabilized with pH-responsive self-assembled amphiphilic tadpole bottlebrush copolymers: bulk reversibility of the self-assembly is lost at the interface. 坚固的皮克林乳液稳定与ph响应自组装两亲蝌蚪瓶刷共聚物：自组装的体积可逆性丢失在界面。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-31 DOI: 10.1016/j.jcis.2026.140019

Clément Goubault , Julien Rosselgong , Gireeshkumar Balakrishnan Nair , Élise Deniau , Maud Save , Christophe Chassenieux , Véronique Schmitt

Hypothesis: The newly synthesized amphiphilic tadpole bottlebrush copolymer can exist in solution as unimers (disassembled polymer chains) or micelles depending on pH. Owing to this specific structure, these assemblies are at thermodynamic equilibrium, allowing for dynamic transitions between unimer and aggregated states. We hypothesize that the same copolymer can stabilize emulsions with distinct properties at varying pH, whether in its unimer or micellar state (Pickering emulsions).

Experiments: We characterized the copolymer behavior in aqueous solutions across pH range using dynamic light scattering (DLS), contact angle measurements, and dynamic tensiometry. Dodecane-in-water emulsions were prepared using the copolymer at various pH values. Emulsion characteristics were studied using optical microscopy and laser granulometry, complemented by visual observations to assess stability over time. The adsorption of polymer micelles at the emulsion droplet surface was investigated using transmission electron microscopy (TEM) of freeze-fractured samples.

Findings: Above pH 5–6, the copolymer acts as a macromolecular surfactant, resulting in emulsions with short-term stability. At lower pH (pH <5–6), when the copolymer self-assembles into micelles, very stable emulsions are obtained, exhibiting long-term stability (> 2 years) even at low copolymer concentrations (as low as 0.001 wt% with respect to total sample weight). Drop size is tunable with the copolymer concentration. TEM analysis of freeze-fractured emulsions reveals micelle adsorption at the droplet surface at low pH, highlighting their efficiency as Pickering emulsion stabilizers. Despite the copolymer reversible assembly in solution, no emulsion breakup occurs when pH increases to reach the unimer state domain. This unexpected behavior suggests that adsorbed copolymer micelles lose pH-sensitivity at the water-dodecane interface, demonstrating a unique system where interfacial behavior differs from solution behavior.

假设：新合成的两亲蝌蚪瓶刷共聚物可以在溶液中以单体（分解的聚合物链）或胶束的形式存在，这取决于ph值。由于这种特殊的结构，这些组件处于热力学平衡状态，允许在单体和聚集状态之间进行动态转换。我们假设相同的共聚物可以在不同的pH值下稳定具有不同性质的乳液，无论是在其单聚状态还是胶束状态（皮克林乳液）。实验：我们使用动态光散射（DLS）、接触角测量和动态张力测量来表征共聚物在水溶液中跨pH范围的行为。用该共聚物在不同的pH值下制备了水十二烷乳液。使用光学显微镜和激光粒度法研究乳液特性，并辅以视觉观察来评估随时间的稳定性。利用透射电子显微镜（TEM）研究了聚合物胶束在乳状液滴表面的吸附。结果：在pH 5-6以上，共聚物作为大分子表面活性剂，形成具有短期稳定性的乳液。在较低的pH （pH 2年），即使在低共聚物浓度（低至0.001 wt%相对于总样品重量）。液滴大小随共聚物浓度可调。对冻裂乳剂的TEM分析显示，在低pH下，胶束吸附在液滴表面，突出了它们作为Pickering乳剂的稳定剂的效率。尽管共聚物在溶液中可逆组装，但当pH值增加到单体状态域时，乳液不会破裂。这种意想不到的行为表明，吸附的共聚物胶束在水-十二烷界面失去了ph敏感性，证明了一种独特的系统，其界面行为不同于溶液行为。

{"title":"Robust Pickering emulsions stabilized with pH-responsive self-assembled amphiphilic tadpole bottlebrush copolymers: bulk reversibility of the self-assembly is lost at the interface.","authors":"Clément Goubault , Julien Rosselgong , Gireeshkumar Balakrishnan Nair , Élise Deniau , Maud Save , Christophe Chassenieux , Véronique Schmitt","doi":"10.1016/j.jcis.2026.140019","DOIUrl":"10.1016/j.jcis.2026.140019","url":null,"abstract":"<div><div>Hypothesis: The newly synthesized amphiphilic tadpole bottlebrush copolymer can exist in solution as unimers (disassembled polymer chains) or micelles depending on pH. Owing to this specific structure, these assemblies are at thermodynamic equilibrium, allowing for dynamic transitions between unimer and aggregated states. We hypothesize that the same copolymer can stabilize emulsions with distinct properties at varying pH, whether in its unimer or micellar state (Pickering emulsions).</div><div>Experiments: We characterized the copolymer behavior in aqueous solutions across pH range using dynamic light scattering (DLS), contact angle measurements, and dynamic tensiometry. Dodecane-in-water emulsions were prepared using the copolymer at various pH values. Emulsion characteristics were studied using optical microscopy and laser granulometry, complemented by visual observations to assess stability over time. The adsorption of polymer micelles at the emulsion droplet surface was investigated using transmission electron microscopy (TEM) of freeze-fractured samples.</div><div>Findings: Above pH 5–6, the copolymer acts as a macromolecular surfactant, resulting in emulsions with short-term stability. At lower pH (pH <5–6), when the copolymer self-assembles into micelles, very stable emulsions are obtained, exhibiting long-term stability (> 2 years) even at low copolymer concentrations (as low as 0.001 wt% with respect to total sample weight). Drop size is tunable with the copolymer concentration. TEM analysis of freeze-fractured emulsions reveals micelle adsorption at the droplet surface at low pH, highlighting their efficiency as Pickering emulsion stabilizers. Despite the copolymer reversible assembly in solution, no emulsion breakup occurs when pH increases to reach the unimer state domain. This unexpected behavior suggests that adsorbed copolymer micelles lose pH-sensitivity at the water-dodecane interface, demonstrating a unique system where interfacial behavior differs from solution behavior.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140019"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146137109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A gadolinium-doped polyphenol-boron nanodrug for improved boron neutron capture therapy 一种用于改进硼中子俘获治疗的掺钆多酚硼纳米药物

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-25 DOI: 10.1016/j.jcis.2026.139970

Gongde Lan , Yuchen Liu , Hongyuan Mao , Han Yu , Weicheng Huang , Pengxiang Chen , Xin Chen , Qingxu Song , Yufeng Cheng , Yuxia Luan

Boron neutron capture therapy (BNCT) is a promising strategy for selective tumor eradication. However, the clinical application of the boron delivery agent p‑boronophenylalanine (BPA) is limited by challenges such as poor solubility, suboptimal tumor accumulation, and lack of effective imaging capabilities. Here, we present a metal polyphenol-based boron nanodrug (EB@Gd NPs), designed to address these challenges and enhance the efficacy of BNCT. Self-assembled from epigallocatechin-3-gallate (EGCG), BPA, and gadolinium ions (Gd³⁺), the EB@Gd NPs exhibit significantly improved tumor targeting and enable real-time magnetic resonance imaging (MRI). These nanoparticles show enhanced tumor accumulation, with MRI providing dynamic insights into boron distribution, thus aiding in determining optimal timing for neutron irradiation. Furthermore, EGCG potentiates therapeutic effect of BNCT by inhibiting DNA repair and promoting efficient DNA double-strand breaks. Therefore, the EB@Gd NPs demonstrate potent tumor growth inhibition in BNCT, holding great potential for improving precision and efficacy of BNCT in cancer therapy.

硼中子俘获治疗（BNCT）是一种很有前途的选择性肿瘤根除策略。然而，硼递送剂对硼苯丙氨酸（BPA）的临床应用受到诸如溶解度差、非理想肿瘤积聚和缺乏有效成像能力等挑战的限制。在这里，我们提出了一种金属多酚基硼纳米药物（EB@Gd NPs），旨在解决这些挑战并提高BNCT的疗效。由表没食子儿茶素-3-没食子酸酯（EGCG）、BPA和钆离子（Gd3+）自组装而成的EB@Gd NPs具有显著提高的肿瘤靶向性，并可实现实时磁共振成像（MRI）。这些纳米颗粒显示出增强的肿瘤积聚，MRI提供了硼分布的动态信息，从而有助于确定中子照射的最佳时机。此外，EGCG通过抑制DNA修复和促进有效的DNA双链断裂来增强BNCT的治疗效果。因此，EB@Gd NPs在BNCT中表现出强大的肿瘤生长抑制作用，在提高BNCT在癌症治疗中的准确性和有效性方面具有很大的潜力。

{"title":"A gadolinium-doped polyphenol-boron nanodrug for improved boron neutron capture therapy","authors":"Gongde Lan , Yuchen Liu , Hongyuan Mao , Han Yu , Weicheng Huang , Pengxiang Chen , Xin Chen , Qingxu Song , Yufeng Cheng , Yuxia Luan","doi":"10.1016/j.jcis.2026.139970","DOIUrl":"10.1016/j.jcis.2026.139970","url":null,"abstract":"<div><div>Boron neutron capture therapy (BNCT) is a promising strategy for selective tumor eradication. However, the clinical application of the boron delivery agent <em>p</em>‑boronophenylalanine (BPA) is limited by challenges such as poor solubility, suboptimal tumor accumulation, and lack of effective imaging capabilities. Here, we present a metal polyphenol-based boron nanodrug (EB@Gd NPs), designed to address these challenges and enhance the efficacy of BNCT. Self-assembled from epigallocatechin-3-gallate (EGCG), BPA, and gadolinium ions (Gd<sup>3+</sup>), the EB@Gd NPs exhibit significantly improved tumor targeting and enable real-time magnetic resonance imaging (MRI). These nanoparticles show enhanced tumor accumulation, with MRI providing dynamic insights into boron distribution, thus aiding in determining optimal timing for neutron irradiation. Furthermore, EGCG potentiates therapeutic effect of BNCT by inhibiting DNA repair and promoting efficient DNA double-strand breaks. Therefore, the EB@Gd NPs demonstrate potent tumor growth inhibition in BNCT, holding great potential for improving precision and efficacy of BNCT in cancer therapy.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139970"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Super-adhesive sensor based on amylopectin-polyacrylic acid hydrogel for deep learning-assisted sign language recognition 基于支链果胶-聚丙烯酸水凝胶的超粘传感器用于深度学习辅助手语识别。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jcis.2026.139914

Zhongyang Cao , Jun Ji , Ziteng Wang, Xiaotian Xia, Yanlong Zhao, Kangkang Zhou, Wei Zhai, Guoqiang Zheng, Kun Dai, Chuntai Liu, Changyu Shen

Flexible wearable electronic devices have garnered substantial research attention and emerged as a pivotal technology across diverse domains, ranging from healthcare monitoring to human-machine interaction. Despite significant advancements in flexible wearable electronic devices, their further application in advanced fields remains limited by poor adhesion and unstable performance. Hydrogels, as soft materials with three-dimensional cross-linked networks, possess inherent advantages that make them promising candidates for addressing these challenges. To comprehensively tackle the challenges, polyacrylic acid /tannic acid /amylopectin (PATA) hydrogels were rationally designed by tuning their composition and network architecture. The resulting PATA hydrogel integrates multiple desirable properties, including superior toughness (431.199 kJ m⁻³), high gauge factor (GF = 3.24), enhanced electrical conductivity (14.58 mS m⁻¹), and strong adhesion to diverse surfaces (89.91 kPa). Moreover, the PATA hydrogel demonstrates remarkable capability in accurately detecting and distinguishing signals from various sources, demonstrating its versatility for communication and monitoring applications. Notably, it can be seamlessly integrated into a deep learning-assisted sign language recognition system, enabling efficient and reliable signal conversion. This innovation provides a robust foundation for bridging the communication gap between deaf-mute individuals and the hearing community.

柔性可穿戴电子设备已经获得了大量的研究关注，并成为从医疗监测到人机交互等各个领域的关键技术。尽管柔性可穿戴电子器件取得了重大进展，但其在先进领域的进一步应用仍然受到粘附性差和性能不稳定的限制。水凝胶作为具有三维交联网络的软材料，具有固有的优势，使其成为解决这些挑战的有希望的候选者。为了全面解决这一挑战，通过调整聚丙烯酸/单宁酸/支链淀粉（PATA）水凝胶的组成和网络结构，对其进行了合理的设计。得到的PATA水凝胶具有多种理想的性能，包括超强的韧性（431.199 kJ - m-3）、高规格系数（GF = 3.24）、增强的导电性（14.58 mS - m-1）和对不同表面的强附着力（89.91 kPa）。此外，PATA水凝胶在准确检测和区分来自各种来源的信号方面表现出卓越的能力，证明了其在通信和监测应用中的通用性。值得注意的是，它可以无缝集成到深度学习辅助手语识别系统中，实现高效可靠的信号转换。这一创新为弥合聋哑人与听力社区之间的沟通差距提供了坚实的基础。

{"title":"Super-adhesive sensor based on amylopectin-polyacrylic acid hydrogel for deep learning-assisted sign language recognition","authors":"Zhongyang Cao , Jun Ji , Ziteng Wang, Xiaotian Xia, Yanlong Zhao, Kangkang Zhou, Wei Zhai, Guoqiang Zheng, Kun Dai, Chuntai Liu, Changyu Shen","doi":"10.1016/j.jcis.2026.139914","DOIUrl":"10.1016/j.jcis.2026.139914","url":null,"abstract":"<div><div>Flexible wearable electronic devices have garnered substantial research attention and emerged as a pivotal technology across diverse domains, ranging from healthcare monitoring to human-machine interaction. Despite significant advancements in flexible wearable electronic devices, their further application in advanced fields remains limited by poor adhesion and unstable performance. Hydrogels, as soft materials with three-dimensional cross-linked networks, possess inherent advantages that make them promising candidates for addressing these challenges. To comprehensively tackle the challenges, polyacrylic acid /tannic acid /amylopectin (PATA) hydrogels were rationally designed by tuning their composition and network architecture. The resulting PATA hydrogel integrates multiple desirable properties, including superior toughness (431.199 kJ m<sup>−3</sup>), high gauge factor (GF = 3.24), enhanced electrical conductivity (14.58 mS m<sup>−1</sup>), and strong adhesion to diverse surfaces (89.91 kPa). Moreover, the PATA hydrogel demonstrates remarkable capability in accurately detecting and distinguishing signals from various sources, demonstrating its versatility for communication and monitoring applications. Notably, it can be seamlessly integrated into a deep learning-assisted sign language recognition system, enabling efficient and reliable signal conversion. This innovation provides a robust foundation for bridging the communication gap between deaf-mute individuals and the hearing community.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139914"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146027875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bidirectional dual-anchoring buried interface regulates crystallization kinetics of perovskite prepared using two-step method for stable and efficient photovoltaics 双向双锚定埋界面调控两步法制备的钙钛矿结晶动力学，实现稳定高效的光伏发电

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jcis.2026.139866

Fei Zheng, Na Yang, Shiqi Li, Jingkun Ren, Chengxi Zhang, Yang Hao, Qinjun Sun, Yuying Hao

Buried interface engineering has been widely recognized as an effective strategy to regulate the perovskite (PVK) crystallization kinetics. However, the mechanism of buried interfaces affect PVK crystallization kinetics is not yet well understood. In this work, a SnO₂/PVK buried interface was modified using N,N′-ethylenediamine disuccinic acid (EDDS) to regulate the crystallization kinetics of the PVK prepared by two-step method and the influencing mechanism was investigated via in-situ spectroscopy techniques. The results indicated EDDS-modified buried interface accelerated the infiltration of organic ammonium salt solution and the formation of sol-gel state, delayed the formation and merging growth of PVK microcrystals, induced the oriented growth of PVK and improved the quality of the PVK film. Moreover, the EDDS exhibited a bidirectional dual-anchoring effect at the SnO₂/PVK interface, which improved the electrical performance of SnO₂ film, ameliorated the SnO₂/PVK interface contact and energy level arrangement and passivated interfacial defects. Benefiting from these advantages, EDDS-modified perovskite solar cells (PSCs) exhibited a power conversion efficiency (PCE) of 24.40%, higher than that of control device (22.89%). An unencapsulated EDDS-modified PSC also exhibited optimal operational stability, sustaining 79% of its initial PCE after continuous illumination for 500 h, being superior to 48% for the control device.

埋藏界面工程是调控钙钛矿（PVK）结晶动力学的一种有效方法。然而，埋藏界面影响PVK结晶动力学的机理尚不清楚。本文采用N，N′-乙二胺二琥珀酸（EDDS）修饰SnO2/PVK埋埋界面，调节两步法制备的PVK结晶动力学，并通过原位光谱技术研究其影响机理。结果表明：edds修饰的埋藏界面加速了有机铵盐溶液的浸润和溶胶-凝胶态的形成，延缓了PVK微晶的形成和合并生长，诱导PVK的定向生长，提高了PVK薄膜的质量。此外，EDDS在SnO2/PVK界面处表现出双向双锚定效应，提高了SnO2薄膜的电学性能，改善了SnO2/PVK界面的接触和能级排列，钝化了界面缺陷。利用这些优点，edds修饰的钙钛矿太阳能电池（PSCs）的功率转换效率（PCE）为24.40%，高于对照装置（22.89%）。未封装edds修饰的PSC也表现出最佳的操作稳定性，在连续照明500小时后保持79%的初始PCE，优于控制装置的48%。

{"title":"Bidirectional dual-anchoring buried interface regulates crystallization kinetics of perovskite prepared using two-step method for stable and efficient photovoltaics","authors":"Fei Zheng, Na Yang, Shiqi Li, Jingkun Ren, Chengxi Zhang, Yang Hao, Qinjun Sun, Yuying Hao","doi":"10.1016/j.jcis.2026.139866","DOIUrl":"10.1016/j.jcis.2026.139866","url":null,"abstract":"<div><div>Buried interface engineering has been widely recognized as an effective strategy to regulate the perovskite (PVK) crystallization kinetics. However, the mechanism of buried interfaces affect PVK crystallization kinetics is not yet well understood. In this work, a SnO<sub>2</sub>/PVK buried interface was modified using N,N′-ethylenediamine disuccinic acid (EDDS) to regulate the crystallization kinetics of the PVK prepared by two-step method and the influencing mechanism was investigated via in-situ spectroscopy techniques. The results indicated EDDS-modified buried interface accelerated the infiltration of organic ammonium salt solution and the formation of sol-gel state, delayed the formation and merging growth of PVK microcrystals, induced the oriented growth of PVK and improved the quality of the PVK film. Moreover, the EDDS exhibited a bidirectional dual-anchoring effect at the SnO<sub>2</sub>/PVK interface, which improved the electrical performance of SnO<sub>2</sub> film, ameliorated the SnO<sub>2</sub>/PVK interface contact and energy level arrangement and passivated interfacial defects. Benefiting from these advantages, EDDS-modified perovskite solar cells (PSCs) exhibited a power conversion efficiency (PCE) of 24.40%, higher than that of control device (22.89%). An unencapsulated EDDS-modified PSC also exhibited optimal operational stability, sustaining 79% of its initial PCE after continuous illumination for 500 h, being superior to 48% for the control device.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139866"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Defect-engineered spinel solid solution on etched zeolite: Design of honeycomb like core-shell roughened-ZSM@Ni0.75Cu0.25Co2O4 composite and mechanistic insights into enhanced methanol-to‑hydrogen conversion 蚀刻沸石上的缺陷工程尖晶石固溶体：蜂窝状核壳roughened-ZSM@Ni0.75Cu0.25Co2O4复合材料的设计和增强甲醇制氢转化的机理研究

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-10 DOI: 10.1016/j.jcis.2026.139843

Su Liu , Wanfen Pu , Qingyuan Chen , Gaihuan Liu , Jianhui Jiang , Xiaohan Zhuge , Ziyuan Yi , Chao Shen , Xing Jin , Jinzhou Zhao

The Co-based spinel was first converted into a NiCuCo solid solution through ion exchange, and then engineered into a core-shell structure using etched Zeolite Socony Mobile-5 (ZSM-5) as the crystallization core, ultimately resulting in MSZSM@Ni_0.75Cu_0.25Co₂O₄ by the solvothermal process, aimed at optimizing the low-temperature activity of methanol-to‑hydrogen conversion. Characterization revealed that solid solution substitution induces lattice contraction. The etched roughened zeolite surface provided abundant anchoring sites for the nucleation, leading to morphological evolution and comprehensive enhancement of physicochemical properties. By architecting the solid solution onto the etched ZSM-5 core, a curved thin-sheet honeycomb composite was formed. This structure overcomes the low surface area limitation of pure spinel, exhibiting a specific surface area of 342.8 m²g⁻¹—nearly ten times greater than the pristine spinel—thereby promoting a higher concentration of active defects. Molecular simulations on the exposed surface {311} revealed that defects preferentially form and adsorption reactions proceed more readily in the composites. In hydrogen preparation via methanol decomposition, 83% of methanol was decomposed at 280 °C, along with 91.5% H₂ selectivity and an H₂/CO ratio of 2.26, demonstrating the excellent activity of nanocomposite MSZSM@Ni_0.75Cu_0.25Co₂O₄.

首先通过离子交换将钴基尖晶石转化为NiCuCo固溶体，然后以蚀刻沸石Socony移动-5 （ZSM-5）为结晶核心，通过溶剂热工艺设计成核壳结构，最终得到MSZSM@Ni0.75Cu0.25Co2O4，旨在优化甲醇-氢转化的低温活性。表征表明，固溶体取代引起晶格收缩。蚀刻粗糙的沸石表面为成核提供了丰富的锚定位点，导致了形态的进化和理化性质的全面增强。通过将固溶体构建到蚀刻的ZSM-5芯上，形成了弯曲的薄板蜂窝复合材料。这种结构克服了纯尖晶石的低表面积限制，其比表面积为342.8 m2 - 1，几乎是原始尖晶石的10倍，从而促进了活性缺陷的更高浓度。暴露表面的分子模拟表明，缺陷优先形成，吸附反应更容易在复合材料中进行。通过甲醇分解制氢，在280℃条件下，甲醇的分解率为83%，H2选择性为91.5%，H2/CO比为2.26，表明纳米复合材料具有良好的活性MSZSM@Ni0.75Cu0.25Co2O4。

{"title":"Defect-engineered spinel solid solution on etched zeolite: Design of honeycomb like core-shell roughened-ZSM@Ni0.75Cu0.25Co2O4 composite and mechanistic insights into enhanced methanol-to‑hydrogen conversion","authors":"Su Liu , Wanfen Pu , Qingyuan Chen , Gaihuan Liu , Jianhui Jiang , Xiaohan Zhuge , Ziyuan Yi , Chao Shen , Xing Jin , Jinzhou Zhao","doi":"10.1016/j.jcis.2026.139843","DOIUrl":"10.1016/j.jcis.2026.139843","url":null,"abstract":"<div><div>The Co-based spinel was first converted into a NiCuCo solid solution through ion exchange, and then engineered into a core-shell structure using etched Zeolite Socony Mobile-5 (ZSM-5) as the crystallization core, ultimately resulting in MSZSM@Ni<sub>0.75</sub>Cu<sub>0.25</sub>Co<sub>2</sub>O<sub>4</sub> by the solvothermal process, aimed at optimizing the low-temperature activity of methanol-to‑hydrogen conversion. Characterization revealed that solid solution substitution induces lattice contraction. The etched roughened zeolite surface provided abundant anchoring sites for the nucleation, leading to morphological evolution and comprehensive enhancement of physicochemical properties. By architecting the solid solution onto the etched ZSM-5 core, a curved thin-sheet honeycomb composite was formed. This structure overcomes the low surface area limitation of pure spinel, exhibiting a specific surface area of 342.8 m<sup>2</sup>g<sup>−1</sup>—nearly ten times greater than the pristine spinel—thereby promoting a higher concentration of active defects. Molecular simulations on the exposed surface {311} revealed that defects preferentially form and adsorption reactions proceed more readily in the composites. In hydrogen preparation via methanol decomposition, 83% of methanol was decomposed at 280 °C, along with 91.5% H<sub>2</sub> selectivity and an H<sub>2</sub>/CO ratio of 2.26, demonstrating the excellent activity of nanocomposite MSZSM@Ni<sub>0.75</sub>Cu<sub>0.25</sub>Co<sub>2</sub>O<sub>4</sub>.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139843"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regulating redox sites for photocatalytic phenylcarbinol conversion and H2 production on lattice-matched Schottky junction 调节晶格匹配肖特基结上光催化苯甲醇转化和H2生成的氧化还原位点

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jcis.2026.139883

Fengqin Wang , Xinyue Ren , Yang Wang , Muhammad Tayyab , Zhongliao Wang , Sugang Meng

The photocatalytic coupling of selective phenylcarbinol oxidation with hydrogen evolution has attracted considerable attention as a promising dual-functional reaction system. Herein, a lattice-matched 2D/3D NiS/CdIn₂S₄ (NiS/CIS) Schottky heterojunction is rationally designed for efficient dual-functional photocatalysis under visible light. Structural analyses confirm the uniform deposition of NiS nanosheets on octahedral CIS with a lattice mismatch below 5%, ensuring coherent interfacial contact. The optimal 3% NiS/CIS composite exhibits exceptional hydrogen and benzaldehyde production rates of 2636.4 and 2717.6 μmol g⁻¹ h⁻¹, respectively—representing enhancements of 39.7 and 38.0 times over pristine CIS. The catalyst also demonstrates remarkable stability, retaining over >99.0% activity after six cycles. Mechanistic studies reveal that the Schottky junction facilitates spatial separation of photogenerated carriers: electrons migrate to NiS, prolonging charge carrier lifetimes and lowering the hydrogen evolution overpotential, while holes accumulate on CIS that facilitated phenylcarbinol adsorption to drive selective phenylcarbinol oxidation via a carbon-radical pathway. This work provides a viable approach for designing efficient bifunctional photocatalysts through lattice-matched interface engineering.

选择性苯甲醇氧化与析氢的光催化偶联反应是一种很有前途的双功能反应体系。本文合理设计了一种晶格匹配的二维/三维NiS/CdIn2S4 （NiS/CIS）肖特基异质结，用于可见光下高效的双功能光催化。结构分析证实了NiS纳米片在八面体CIS上的均匀沉积，晶格失配低于5%，确保了界面的相干接触。最优的3% NiS/CIS复合材料的氢气和苯甲醛产率分别为2636.4和2717.6 μmol g−1 h−1，比原始CIS提高了39.7倍和38.0倍。催化剂也表现出显著的稳定性，在六个循环后保持超过99.0%的活性。机制研究表明，肖特基结促进了光生载流子的空间分离：电子迁移到NiS，延长了载流子寿命，降低了析氢过电位，而CIS上的空穴积累促进了苯甲醇的吸附，通过碳自由基途径驱动苯甲醇的选择性氧化。本研究为通过晶格匹配界面工程设计高效双功能光催化剂提供了一条可行的途径。

{"title":"Regulating redox sites for photocatalytic phenylcarbinol conversion and H2 production on lattice-matched Schottky junction","authors":"Fengqin Wang , Xinyue Ren , Yang Wang , Muhammad Tayyab , Zhongliao Wang , Sugang Meng","doi":"10.1016/j.jcis.2026.139883","DOIUrl":"10.1016/j.jcis.2026.139883","url":null,"abstract":"<div><div>The photocatalytic coupling of selective phenylcarbinol oxidation with hydrogen evolution has attracted considerable attention as a promising dual-functional reaction system. Herein, a lattice-matched 2D/3D NiS/CdIn<sub>2</sub>S<sub>4</sub> (NiS/CIS) Schottky heterojunction is rationally designed for efficient dual-functional photocatalysis under visible light. Structural analyses confirm the uniform deposition of NiS nanosheets on octahedral CIS with a lattice mismatch below 5%, ensuring coherent interfacial contact. The optimal 3% NiS/CIS composite exhibits exceptional hydrogen and benzaldehyde production rates of 2636.4 and 2717.6 μmol g<sup>−1</sup> h<sup>−1</sup>, respectively—representing enhancements of 39.7 and 38.0 times over pristine CIS. The catalyst also demonstrates remarkable stability, retaining over >99.0% activity after six cycles. Mechanistic studies reveal that the Schottky junction facilitates spatial separation of photogenerated carriers: electrons migrate to NiS, prolonging charge carrier lifetimes and lowering the hydrogen evolution overpotential, while holes accumulate on CIS that facilitated phenylcarbinol adsorption to drive selective phenylcarbinol oxidation via a carbon-radical pathway. This work provides a viable approach for designing efficient bifunctional photocatalysts through lattice-matched interface engineering.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139883"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bimetallic plasmonic thermo-cycling driven by strong interfacial coupling in dual-hollow structure for enhanced photothermal hydrogen production 双空心结构中强界面耦合驱动的双金属等离子体热循环促进光热制氢。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-16 DOI: 10.1016/j.jcis.2026.139920

Shanhao He , Zuqi Li , Yixin Li , Zhiqiang Wang , Jinjun Tian , Keliang Wu , Qiang Liu , Bingke Li , Zhiyong Liu , Yanlong Tai

Conventional photocatalysts exhibit various limitations, including the insufficient utilization of near-infrared (NIR) light and the rapid recombination of photogenerated carriers. To address these limitations, a novel double-hollow plasmonic nanoreactor (H-ZIS_v/Au-Ag) with a “Plasmonic Thermo-Cycling (PTC)” enhancement mechanism was prepared herein. The cocatalyst, Au-Ag hollow alloy particles (HAPs), was embedded within the hollow structure via sulfur vacancy-mediated strong interfacial coupling, which synergistically enhances light scattering/reflection and promotes directional charge transfer. Subsequently, the localized surface plasmon resonance (LSPR) of Au-Ag HAPs extends light absorption into the NIR region and generates an intensely enhanced local electromagnetic field, enabling efficient hot electron excitation and remarkable photothermal conversion. Notably, the optimized Schottky junction, plasmonic near-field enhancement, and dual-cavity confinement effect synergistically improve the performance of the photothermally assisted photocatalytic hydrogen evolution (PTHE) reaction. Under AM 1.5G illumination at without cooling water (WCW), the catalyst achieved a high hydrogen evolution rate of 18.08 mmol·g⁻¹·h⁻¹, which is 2.99 times greater than that of pristine H-ZIS_v. The catalyst also demonstrates excellent stability over 750 min and exhibits measurable NIR-driven activity at 800 nm. In summary, this work establishes an effective strategy for achieving highly efficient photothermal hydrogen production by integrating defect engineering, a double-hollow nanostructure, and bimetallic plasmon resonance.

传统的光催化剂表现出各种局限性，包括近红外（NIR）光的利用不足和光生成载体的快速重组。为了解决这些问题，本文制备了一种具有“等离子体热循环”增强机制的新型双空心等离子体纳米反应器（H-ZISv/Au-Ag）。助催化剂金-银空心合金颗粒（HAPs）通过硫空位介导的强界面耦合嵌入到空心结构中，协同增强光散射/反射，促进定向电荷转移。随后，Au-Ag HAPs的局部表面等离子体共振（LSPR）将光吸收扩展到近红外区域，并产生强烈增强的局部电磁场，从而实现高效的热电子激发和显著的光热转换。值得注意的是，优化的肖特基结、等离子体近场增强和双腔约束效应协同提高了光热辅助光催化析氢（PTHE）反应的性能。在无冷却水（WCW）的AM 1.5G光照下，催化剂的析氢速率达到18.08 mmol·g-1·h-1，是原始H-ZISv的2.99倍。该催化剂在750 min内表现出优异的稳定性，在800 nm处表现出可测量的nir驱动活性。综上所述，本研究通过集成缺陷工程、双空心纳米结构和双金属等离子体共振，建立了实现高效光热制氢的有效策略。

{"title":"Bimetallic plasmonic thermo-cycling driven by strong interfacial coupling in dual-hollow structure for enhanced photothermal hydrogen production","authors":"Shanhao He , Zuqi Li , Yixin Li , Zhiqiang Wang , Jinjun Tian , Keliang Wu , Qiang Liu , Bingke Li , Zhiyong Liu , Yanlong Tai","doi":"10.1016/j.jcis.2026.139920","DOIUrl":"10.1016/j.jcis.2026.139920","url":null,"abstract":"<div><div>Conventional photocatalysts exhibit various limitations, including the insufficient utilization of near-infrared (NIR) light and the rapid recombination of photogenerated carriers. To address these limitations, a novel double-hollow plasmonic nanoreactor (H-ZIS<sub>v</sub>/Au-Ag) with a “Plasmonic Thermo-Cycling (PTC)” enhancement mechanism was prepared herein. The cocatalyst, Au-Ag hollow alloy particles (HAPs), was embedded within the hollow structure via sulfur vacancy-mediated strong interfacial coupling, which synergistically enhances light scattering/reflection and promotes directional charge transfer. Subsequently, the localized surface plasmon resonance (LSPR) of Au-Ag HAPs extends light absorption into the NIR region and generates an intensely enhanced local electromagnetic field, enabling efficient hot electron excitation and remarkable photothermal conversion. Notably, the optimized Schottky junction, plasmonic near-field enhancement, and dual-cavity confinement effect synergistically improve the performance of the photothermally assisted photocatalytic hydrogen evolution (PTHE) reaction. Under AM 1.5G illumination at without cooling water (WCW), the catalyst achieved a high hydrogen evolution rate of 18.08 mmol·g<sup>−1</sup>·h<sup>−1</sup>, which is 2.99 times greater than that of pristine H-ZIS<sub>v</sub>. The catalyst also demonstrates excellent stability over 750 min and exhibits measurable NIR-driven activity at 800 nm. In summary, this work establishes an effective strategy for achieving highly efficient photothermal hydrogen production by integrating defect engineering, a double-hollow nanostructure, and bimetallic plasmon resonance.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139920"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146016873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Entropy and defect coupling in high-entropy hexagonal materials mitigates coulombic interaction for superior aluminum storage 高熵六边形材料中的熵和缺陷耦合减轻了库仑相互作用，从而提高了铝的储存能力

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-22 DOI: 10.1016/j.jcis.2026.139964

Rongkai Kang , Han Wang , Xingchang Zhang , Boya Zhang , Yiqun Du , Hengyi Fang , Dan Xu , Krishnaswamy Nandakumar , Jianxin Zhang

High-entropy materials promise exceptional structural stability and tunable chemistry, yet their application in aluminum batteries (ABs) remains hampered by sluggish ion transport and poorly understood entropy and defect interactions. Here, we combine the high-entropy strategy with the layered double hydroxide (LDH) concept to design a two-dimensional (2D) high-entropy hexagonal material with engineered oxygen vacancies (V_O-HEH) to directly tackle these bottlenecks in Al storage. Entropy-driven elemental diversity induces strong orbital hybridization between metals of disparate electronegativity, creating a delocalized electronic environment that accelerates charge transfer. The oxygen vacancies (V_O) formed in parallel are demonstrated to suppress coulombic interaction and open rapid migration channels, thereby overcoming the intrinsic kinetic barriers of Al³⁺ insertion. The V_O-HEH cathode delivers improved capacity (177 mAh g⁻¹ at 0.5 A g⁻¹) and enhanced cycling stability (102 mAh g⁻¹ over 1400 cycles at 3.0 A g⁻¹) enabled by the synergistic effects of entropy stabilization, defect regulation, and multi-electron redox. This work presents a well-designed single-phase high-entropy cathode and elucidates how entropy and defect effects modulate the electronic structure and govern the electrochemical behavior of ABs.

高熵材料具有优异的结构稳定性和可调的化学性质，但它们在铝电池（ABs）中的应用仍然受到离子传输缓慢以及对熵和缺陷相互作用知之甚少的阻碍。在这里，我们将高熵策略与分层双氢氧化物（LDH）概念结合起来，设计了一种具有工程氧空位（VO-HEH）的二维（2D）高熵六边形材料，以直接解决铝存储中的这些瓶颈。熵驱动的元素多样性诱导了不同电负性金属之间强烈的轨道杂化，创造了一个加速电荷转移的离域电子环境。平行形成的氧空位（VO）抑制了库仑相互作用，打开了快速迁移通道，从而克服了Al3+插入的内在动力学障碍。通过熵稳定、缺陷调节和多电子氧化还原的协同效应，VO-HEH阴极提供了改进的容量（在0.5 A g−1时177 mAh g−1）和增强的循环稳定性（在3.0 A g−1时超过1400次循环102 mAh g−1）。这项工作提出了一个设计良好的单相高熵阴极，并阐明了熵和缺陷效应如何调节ABs的电子结构和控制其电化学行为。

{"title":"Entropy and defect coupling in high-entropy hexagonal materials mitigates coulombic interaction for superior aluminum storage","authors":"Rongkai Kang , Han Wang , Xingchang Zhang , Boya Zhang , Yiqun Du , Hengyi Fang , Dan Xu , Krishnaswamy Nandakumar , Jianxin Zhang","doi":"10.1016/j.jcis.2026.139964","DOIUrl":"10.1016/j.jcis.2026.139964","url":null,"abstract":"<div><div>High-entropy materials promise exceptional structural stability and tunable chemistry, yet their application in aluminum batteries (ABs) remains hampered by sluggish ion transport and poorly understood entropy and defect interactions. Here, we combine the high-entropy strategy with the layered double hydroxide (LDH) concept to design a two-dimensional (2D) high-entropy hexagonal material with engineered oxygen vacancies (V<sub>O</sub>-HEH) to directly tackle these bottlenecks in Al storage. Entropy-driven elemental diversity induces strong orbital hybridization between metals of disparate electronegativity, creating a delocalized electronic environment that accelerates charge transfer. The oxygen vacancies (V<sub>O</sub>) formed in parallel are demonstrated to suppress coulombic interaction and open rapid migration channels, thereby overcoming the intrinsic kinetic barriers of Al<sup>3+</sup> insertion. The V<sub>O</sub>-HEH cathode delivers improved capacity (177 mAh g<sup>−1</sup> at 0.5 A g<sup>−1</sup>) and enhanced cycling stability (102 mAh g<sup>−1</sup> over 1400 cycles at 3.0 A g<sup>−1</sup>) enabled by the synergistic effects of entropy stabilization, defect regulation, and multi-electron redox. This work presents a well-designed single-phase high-entropy cathode and elucidates how entropy and defect effects modulate the electronic structure and govern the electrochemical behavior of ABs.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139964"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Viscosity and dynamic surface tension measurement: A guideline for appropriate measurement 粘度和动态表面张力测量：适当测量的指南。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-23 DOI: 10.1016/j.jcis.2026.139929

Vivek Kumar , JSM Quintero , Aleksey Baldygin , Paul Molina , Thomas Willers , Prashant R. Waghmare

Dynamic surface tension measurements play a critical role in interfacial activities for liquids with varying viscosities. Understanding the rate at which the interface attains the equilibrium, for surface tension measurements, after the formation of a new interface is of significant interest. Although surface tension is independent of dynamic viscosity, the time required for a new surface to form (equilibrium/relaxation time) is influenced by viscosity. The measured surface tension value is accurate only once these viscous effects have subsided. Therefore, the relaxation time represents the minimum surface age value achievable during the measurement process. We experimentally established the minimum surface age needed to measure the dynamic and static surface tension of a fluid with a specific viscosity using three widely used methods: the Pendant drop method, the Wilhelmy plate method, and the Bubble pressure method. We propose a guideline with a phase plot that helps to choose the most suitable method and the youngest achievable surface age for an accurate measurement, independent of viscous effects. This guideline enables users in diverse applications such as 3D printed clothing, spray paint, coating, etc., to accurately measure dynamic and static surface tension without being influenced by viscosity effects.

动态表面张力测量对不同粘度液体的界面活性起着至关重要的作用。了解界面在形成新界面后达到平衡的速率，对于表面张力测量具有重要意义。虽然表面张力与动态粘度无关，但形成新表面所需的时间（平衡/松弛时间）受到粘度的影响。只有当这些粘性效应消退时，测量的表面张力值才准确。因此，松弛时间代表了测量过程中可以达到的最小表面年龄值。我们通过实验建立了测量具有特定粘度的流体的动态和静态表面张力所需的最小表面年龄，使用了三种广泛使用的方法：Pendant drop法、Wilhelmy plate法和Bubble pressure法。我们提出了一个相图的指导方针，有助于选择最合适的方法和最年轻的表面年龄，以进行准确的测量，独立于粘性效应。该指南使用户能够在3D打印服装，喷漆，涂层等不同应用中准确测量动态和静态表面张力，而不受粘度效应的影响。

{"title":"Viscosity and dynamic surface tension measurement: A guideline for appropriate measurement","authors":"Vivek Kumar , JSM Quintero , Aleksey Baldygin , Paul Molina , Thomas Willers , Prashant R. Waghmare","doi":"10.1016/j.jcis.2026.139929","DOIUrl":"10.1016/j.jcis.2026.139929","url":null,"abstract":"<div><div>Dynamic surface tension measurements play a critical role in interfacial activities for liquids with varying viscosities. Understanding the rate at which the interface attains the equilibrium, for surface tension measurements, after the formation of a new interface is of significant interest. Although surface tension is independent of dynamic viscosity, the time required for a new surface to form (equilibrium/relaxation time) is influenced by viscosity. The measured surface tension value is accurate only once these viscous effects have subsided. Therefore, the relaxation time represents the minimum surface age value achievable during the measurement process. We experimentally established the minimum surface age needed to measure the dynamic and static surface tension of a fluid with a specific viscosity using three widely used methods: the Pendant drop method, the Wilhelmy plate method, and the Bubble pressure method. We propose a guideline with a phase plot that helps to choose the most suitable method and the youngest achievable surface age for an accurate measurement, independent of viscous effects. This guideline enables users in diverse applications such as 3D printed clothing, spray paint, coating, etc., to accurately measure dynamic and static surface tension without being influenced by viscosity effects.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139929"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146083731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rare-earth-mediated electronic engineering in high entropy alloy catalysts for enhanced performance in rechargeable zinc–air batteries 稀土介导的电子工程高熵合金催化剂用于提高可充电锌空气电池的性能

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-23 DOI: 10.1016/j.jcis.2026.139917

Yi Chen , Zhen Tan , Huile Jin , Yan Jiao , Jun Li , Shun Wang

The development of rechargeable zinc–air batteries (ZABs) is fundamentally constrained by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), which govern the discharge and charge processes, respectively. Although high-entropy alloys (HEAs) offer tunable electronic structures and multi-metal synergy, precisely controlling the adsorption strength of oxygenated species to achieve superior bifunctional activity remains challenging when limited to conventional 3d transition metals. Herein, we report a melamine-assisted pyrolysis strategy to synthesize a series of rare-earth (RE = Ce, Gd, La) integrated FeCoNiMn high-entropy alloy nanoparticles encapsulated within N-doped carbon nanotubes. Among these, the FeCoNiMnCe@NCNTs catalyst demonstrates exceptional bifunctional performance with a half-wave potential of 0.853 V for ORR and an overpotential of 273 mV at 10 mA cm⁻² for OER, yielding a small potential gap (ΔE = 0.65 V). Experimental and theoretical analyses reveal that Ce integration induces favorable electronic structure modulation and enhanced orbital hybridization, which collectively optimize the adsorption free energy of oxygen intermediates and lower the energy barrier of the potential-determining step for both reactions. When applied as an air cathode in ZAB, the catalyst enables a high power density of 188.7 mW cm⁻² and remarkable long-term charge-discharge stability exceeding 325 h. This work highlights the potential of RE-tuned HEAs as robust and efficient bifunctional electrocatalysts for next-generation energy conversion systems.

氧还原反应（ORR）和析氧反应（OER）的缓慢动力学从根本上制约了可充电锌空气电池（ZABs）的发展，而氧还原反应（ORR）和析氧反应（OER）分别控制着电池的放电和充电过程。虽然高熵合金（HEAs）具有可调谐的电子结构和多金属协同作用，但当限于传统的3d过渡金属时，精确控制含氧物质的吸附强度以实现优越的双功能活性仍然是一项挑战。在此，我们报道了一种三聚氰胺辅助热解策略，合成了一系列稀土（RE = Ce, Gd, La）集成FeCoNiMn高熵合金纳米颗粒，这些纳米颗粒被包裹在n掺杂的碳纳米管中。其中，FeCoNiMnCe@NCNTs催化剂表现出优异的双功能性能，ORR的半波电位为0.853 V， OER在10 mA cm−2时的过电位为273 mV，产生很小的电位间隙（ΔE = 0.65 V）。实验和理论分析表明，Ce集成诱导了有利的电子结构调制和增强的轨道杂化，共同优化了氧中间体的吸附自由能，降低了两个反应的势垒。当用作ZAB的空气阴极时，该催化剂具有188.7 mW cm - 2的高功率密度和超过325小时的长期充放电稳定性。这项工作突出了re -调谐HEAs作为下一代能量转换系统中强大而高效的双功能电催化剂的潜力。

{"title":"Rare-earth-mediated electronic engineering in high entropy alloy catalysts for enhanced performance in rechargeable zinc–air batteries","authors":"Yi Chen , Zhen Tan , Huile Jin , Yan Jiao , Jun Li , Shun Wang","doi":"10.1016/j.jcis.2026.139917","DOIUrl":"10.1016/j.jcis.2026.139917","url":null,"abstract":"<div><div>The development of rechargeable zinc–air batteries (ZABs) is fundamentally constrained by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), which govern the discharge and charge processes, respectively. Although high-entropy alloys (HEAs) offer tunable electronic structures and multi-metal synergy, precisely controlling the adsorption strength of oxygenated species to achieve superior bifunctional activity remains challenging when limited to conventional 3d transition metals. Herein, we report a melamine-assisted pyrolysis strategy to synthesize a series of rare-earth (RE = Ce, Gd, La) integrated FeCoNiMn high-entropy alloy nanoparticles encapsulated within N-doped carbon nanotubes. Among these, the FeCoNiMnCe@NCNTs catalyst demonstrates exceptional bifunctional performance with a half-wave potential of 0.853 V for ORR and an overpotential of 273 mV at 10 mA cm<sup>−2</sup> for OER, yielding a small potential gap (ΔE = 0.65 V). Experimental and theoretical analyses reveal that Ce integration induces favorable electronic structure modulation and enhanced orbital hybridization, which collectively optimize the adsorption free energy of oxygen intermediates and lower the energy barrier of the potential-determining step for both reactions. When applied as an air cathode in ZAB, the catalyst enables a high power density of 188.7 mW cm<sup>−2</sup> and remarkable long-term charge-discharge stability exceeding 325 h. This work highlights the potential of RE-tuned HEAs as robust and efficient bifunctional electrocatalysts for next-generation energy conversion systems.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"709 ","pages":"Article 139917"},"PeriodicalIF":9.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0