ChemPhysMater最新文献

英文中文

Editorial for the special issue “Energy Material Chemistry” 《能源材料化学》特刊社论

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-12-26 DOI: 10.1016/j.chphma.2024.12.001

Shenglin Xiong , Guest Editor

引用次数: 0

Advances in lithium-ion battery recycling: Strategies, pathways, and technologies 锂离子电池回收的进展：策略、途径和技术

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-06-29 DOI: 10.1016/j.chphma.2024.05.005

Ziwei Tong , Mingyue Wang , Zhongchao Bai , Huijun Li , Nana Wang

The use of lithium-ion batteries in portable electronic devices and electric vehicles has become well-established, and battery demand is rapidly increasing annually. While technological innovations in electrode materials and battery performance have been pursued, the environmental threats and resource wastage posed by the resulting surge in used batteries have been overlooked. Spent batteries are technically inoperable but contain excess metal inside the structure, making recycling essential for environmental protection and recovery of scarce resources. The battery recycling industry has gradually emerged under the influence of government implementation and ecological protection trends. However, the annual recycling volume is still insufficient compared to the output volume of used batteries. Therefore, more recycling plants and advanced technologies are imperative to improve recycling efficiency. This article summarizes pretreatment, pyrometallurgical, and hydrometallurgical processes and technologies in three major parts, analyzes their applicability and environmental friendliness using industrial examples, highlights their technical shortcomings and problems, and emphasizes the bright future of battery recycling.

锂离子电池在便携式电子设备和电动汽车中的应用已经很成熟，电池需求每年都在快速增长。虽然人们一直在追求电极材料和电池性能方面的技术创新，但由此产生的废旧电池激增所带来的环境威胁和资源浪费却被忽视了。废旧电池在技术上是不可操作的，但在结构内部含有多余的金属，因此回收利用对于环境保护和稀缺资源的回收至关重要。在政府实施和生态保护趋势的影响下，电池回收行业逐渐兴起。然而，与废旧电池的年产量相比，年回收量仍然不足。因此，需要更多的回收工厂和先进的技术来提高回收效率。本文从预处理、火法冶金和湿法冶金三大类工艺技术进行了综述，并通过工业实例分析了其适用性和环境友好性，突出了其技术缺陷和存在的问题，强调了电池回收的美好前景。

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引用次数: 0

Epitaxial growth of Pd clusters on N-doped Ag nanowires for oxygen reduction reaction 氮掺杂银纳米线上Pd簇的外延生长及其氧还原反应

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-06-24 DOI: 10.1016/j.chphma.2024.06.004

Qinhe Guan , Shiwei Sun , Xiaohang Ge , Fan Zhang , Lijie Qu , Chao Yin , Weiyong Yuan , Lianying Zhang

Efficient and stable Pt-free electrocatalysts for oxygen reduction reaction (ORR) are indispensable for future fuel cells. Herein, we describe a heterostructure of Pd nanocrystals (PdNCs) on N-doped Ag nanowires (NWs) synthesized using a direct epitaxial growth strategy with a Pd loading of only 9.5 wt.%. The PdAg bimetallic heterostructure showed the highest mass activity among reported PdAg-based ORR electrocatalysts and exhibited excellent stability, with only a 1.5 mV decay in the half-wave potential even after 20000 cycles of continuous testing. The remarkably enhanced activity and durability can be attributed to the distinct advantages of the ultrasmall PdNCs, cocatalysts of N-doped AgNWs, and their heterointerfaces. This work reveals that the epitaxial growth of a heterostructure on a stable support is a promising strategy for promoting catalytic performance.

高效、稳定的氧还原反应（ORR）电催化剂是未来燃料电池不可缺少的催化剂。本文中，我们描述了一种在氮掺杂银纳米线（NWs）上使用直接外延生长策略合成的Pd纳米晶体（pdnc）的异质结构，Pd负载仅为9.5% wt.%。PdAg双金属异质结构在已有报道的PdAg基ORR电催化剂中表现出最高的质量活性，并表现出优异的稳定性，即使在连续测试20000次后，半波电位也只有1.5 mV的衰减。活性和耐久性的显著增强可归因于超小PdNCs， n掺杂AgNWs的助催化剂及其异质界面的独特优势。这项工作揭示了异质结构在稳定载体上的外延生长是一种很有前途的促进催化性能的策略。

引用次数: 0

Fullerene nanosheets for surface-enhanced Raman spectroscopy 用于表面增强拉曼光谱的富勒烯纳米片

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-05-09 DOI: 10.1016/j.chphma.2024.04.001

Linchangqing Yang , Yahui Li , Wei Liu , Junhao Zhang , Qinghong Kong , Guangcheng Xi

Most surface-enhanced Raman scattering (SERS) substrates are based on noble metals or transition metal semiconductors. Developing nonmetallic SERS substrates is of great significance for expanding the application scope of SERS substrate materials. In this study, ultrathin C₆₀ nanosheets with two-dimensional structures were synthesized using CVD and used as SERS substrates. Owing to the combined effects of favorable factors such as the expanded specific surface area and matched interfacial charge transport paths, the substrate has a minimum detection limit of 10⁻¹¹ for rhodamine 6G and a Raman enhancement factor of 10⁷. In addition, the C₆₀ nanosheets exhibited good stability and uniformity as SERS substrates.

大多数表面增强拉曼散射（SERS）衬底是基于贵金属或过渡金属半导体。开发非金属SERS基板对于扩大SERS基板材料的应用范围具有重要意义。本研究利用CVD技术合成了具有二维结构的超薄C60纳米片，并将其作为SERS衬底。由于扩大的比表面积和匹配的界面电荷传输路径等有利因素的综合作用，衬底对罗丹明6G的最小检测限为10−11，拉曼增强因子为107。此外，C60纳米片作为SERS衬底具有良好的稳定性和均匀性。

引用次数: 0

One-step solvothermal preparation of Fe-doped Ni0.85Se/NF: An efficient catalyst for the oxygen evolution reaction 一步溶热法制备掺杂铁的 Ni0.85Se/NF：氧进化反应的高效催化剂

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-04-02 DOI: 10.1016/j.chphma.2024.03.002

Longqi Zhu , Runze Wang , Chen Wang , Shuhan Yang , Haizhen Liu , Bo Xing , Honghui Cheng , Kuikui Wang

Metal–cation doping is a fundamental strategy for enhancing catalyst performance. Fe-doped Ni_0.85Se/NF (Fe-Ni_0.85Se/NF) nanoparticles were prepared at 80 °C via Fe²⁺ etching method. The addition of Fe altered the coordination environment of the Ni species along with the catalyst's morphology, creating additional active sites. Notably, the synergistic interaction between the bimetallic components augmented the built-in activity and accelerated reaction kinetics. The Fe-Ni_0.85Se/NF electrocatalysts demonstrated remarkable catalytic activity for the oxygen evolution reaction (OER), with an acceptable overpotential of 276 mV and a Tafel slope of 58.1 mV dec⁻¹ at 100 mA cm⁻². Moreover, they demonstrated exceptional durability. In situ Raman and X-ray photoelectron spectroscopy (XPS) analyses showed that the excellent OER performance stemmed from the reconstruction-induced hydroxyl oxide. This study offers a novel approach for streamlining the synthesis procedures and reducing the experimental costs for developing high-efficiency electrocatalysts.

金属阳离子掺杂是提高催化剂性能的基本策略。采用Fe2+蚀刻法制备了fe掺杂Ni0.85Se/NF （Fe-Ni0.85Se/NF）纳米颗粒。Fe的加入改变了Ni的配位环境以及催化剂的形态，产生了额外的活性位点。值得注意的是，双金属组分之间的协同作用增强了内在活性，加速了反应动力学。Fe-Ni0.85Se/NF电催化剂在100 mA cm−2下的过电位为276 mV， Tafel斜率为58.1 mV / dec−1，对析氧反应（OER）具有显著的催化活性。此外，它们表现出了非凡的耐用性。原位拉曼和x射线光电子能谱（XPS）分析表明，优异的OER性能源于重建诱导的羟基氧化物。本研究为开发高效电催化剂提供了简化合成过程和降低实验成本的新途径。

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引用次数: 0

Rapid Joule-heating synthesis of metal/carbon-based electrocatalysts for efficient carbon dioxide reduction 快速焦耳加热合成高效二氧化碳还原金属/碳基电催化剂

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-06-20 DOI: 10.1016/j.chphma.2024.06.002

Weijian Guo , Xueying Cao , Ao Zhou, Wenwen Cai, Jintao Zhang

Carbon-loaded metal nanoparticles (NPs) are widely employed as functional materials for electrocatalysis. In this study, a rapid thermal shock method was developed to load various metal nanoparticles onto carbon supports. Compared to conventional pyrolysis processes, Joule heating enables rapid heating to elevated temperatures within a short period, effectively preventing the migration and aggregation of metal atoms. Simultaneously, the anchoring effect of defective carbon carriers ensures the uniform distribution of NPs on the carbon supports. Additionally, nitrogen doping can significantly enhance the electronic conductivity of the carbon matrix and strengthen the metal-carbon interactions, thereby synergistically improving catalyst performance. When used as electrocatalysts for electrocatalytic CO₂ reduction, bismuth-, indium-, and tin/carbon-carrier-based catalysts exhibit excellent Faraday efficiencies of 92.8%, 86.4%, and 73.3%, respectively, for formate generation in flow cells. The influence of different metals and calcination temperatures on catalytic performance was examined to provide valuable insights into the rational design of carbon-based electrocatalysts with enhanced electrocatalytic activity.

载碳金属纳米颗粒作为电催化功能材料得到了广泛的应用。在这项研究中，开发了一种快速热冲击方法，将各种金属纳米颗粒加载到碳载体上。与传统的热解工艺相比，焦耳加热可以在短时间内快速加热到较高的温度，有效地防止金属原子的迁移和聚集。同时，缺陷碳载体的锚定效应保证了NPs在碳载体上的均匀分布。此外，氮掺杂可以显著提高碳基体的电子导电性，增强金属-碳相互作用，从而协同提高催化剂性能。当用作电催化CO2还原的电催化剂时，铋、铟和锡/碳载体催化剂在流动电池中生成甲酸的法拉第效率分别为92.8%、86.4%和73.3%。研究了不同金属和煅烧温度对催化性能的影响，为合理设计具有增强电催化活性的碳基电催化剂提供了有价值的见解。

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引用次数: 0

MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage mxene衍生的二氧化钛纳米片/氧化石墨烯异质结构用于优越的钠离子存储

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-05-29 DOI: 10.1016/j.chphma.2024.05.001

Baosong Li , Dezhuang Ji , Abdallah Kamal Hamouda , Shaohong Luo

Transition metal oxides hold promise as electrode materials for energy-storage devices such as batteries and supercapacitors. However, achieving ideal electrode materials with high capacity, long-term cycling stability, and superb rate capability remains a challenge. In this study, we present a self-assembled heterogeneous structure consisting of TiO₂ nanosheets derived from Ti₃C₂T_x MXene and reduced graphene oxide. This structure facilitates the formation of heterogeneous structures while establishing a conductive network. The restacking of porous TiO₂ nanosheets and reduced graphene oxide within the heterostructure results in high porosity and excellent conductivity. Due to enhanced electron and Na⁺ transfer, as well as improved structural stability during the Na⁺ insertion/extraction process, this heterogeneous structure exhibited exceptional Na⁺ storage performance. Specifically, it exhibits a long-term cycling stability (217 mAh g⁻¹ at 10 C, 5000 cycles) and an ultrahigh rate capability (135 mAh g^–1, 40 C). Analysis of electrode reaction kinetics suggests that Na⁺ storage in the heterostructure is predominantly governed by a surface-controlled process. Our results provide a promising strategy for utilizing self-assembled heterostructures in advanced energy storage applications.

过渡金属氧化物有望成为电池和超级电容器等储能设备的电极材料。然而，获得具有高容量、长期循环稳定性和卓越速率能力的理想电极材料仍然是一个挑战。在这项研究中，我们提出了一种由Ti3C2Tx MXene和还原氧化石墨烯衍生的TiO2纳米片组成的自组装异质结构。这种结构有利于异质结构的形成，同时建立导电网络。在异质结构中重新堆积多孔TiO2纳米片和还原氧化石墨烯可以获得高孔隙率和优异的导电性。由于电子和Na+转移的增强，以及在Na+插入/提取过程中结构稳定性的提高，这种异质结构表现出优异的Na+存储性能。具体来说，它表现出长期的循环稳定性（217 mAh g−1，在10℃，5000次循环）和超高倍率能力（135 mAh g−1,40℃）。电极反应动力学分析表明，Na+在异质结构中的储存主要由表面控制过程控制。我们的研究结果为在先进储能应用中利用自组装异质结构提供了一种有前途的策略。

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引用次数: 0

Phase engineering of H/T-Nb2O5 homojunction for enhanced lithium-ion storage H/T-Nb2O5同质结增强锂离子存储的相位工程

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-09-25 DOI: 10.1016/j.chphma.2024.09.002

Sheng Li , Jun Li , Wenjie Zhang , Sherif A. El‐Khodary , Yubo Luo , Dickon H.L. Ng , Xiaoshui Peng , Jiabiao Lian

Phase engineering has gained significant attention in energy-storage applications due to its ability to tailor the physicochemical properties and functionalities of electrode materials. In this study, we demonstrate the in-situ partial phase conversion of niobium pentoxide (Nb₂O₅), resulting in the formation of a monoclinic/orthorhombic (H/T-Nb₂O₅) heterophase homojunction. This study further confirms that the unique heterophase interface plays a crucial role in regulating the local electronic environment, resulting in charge redistribution, the formation of an internal electric field, and enhanced electron transfer. Moreover, the presence of abundant phase interfaces offers additional reactive sites for Li⁺ ion adsorption, thereby enhancing reaction dynamics. The synergistic effects within the H/T-Nb₂O₅ homojunction are reflected in its high Li⁺ storage capacity (413 mAh g⁻¹ at 100 mA g⁻¹), superior rate capability, and cycling stability. Thus, this study demonstrates that the construction of heterophase homojunctions offers a promising strategy for developing high-performance anode materials for efficient Li-ion storage.

由于相位工程能够调整电极材料的物理化学性质和功能，因此在储能应用中受到了极大的关注。在这项研究中，我们证明了五氧化二铌（Nb2O5）的原位部分相转化，导致形成单斜/正交（H/T-Nb2O5）异相同结。本研究进一步证实了独特的异相界面在调节局部电子环境中起着至关重要的作用，导致电荷重新分配，形成内部电场，增强电子转移。此外，丰富的相界面的存在为Li+离子吸附提供了额外的反应位点，从而增强了反应动力学。H/T-Nb2O5同质结内的协同效应体现在其高Li+存储容量（100 mA g−1时为413 mAh g−1），优越的倍率能力和循环稳定性。因此，本研究表明，异相同质结的构建为开发高效锂离子存储的高性能阳极材料提供了一个有前途的策略。

{"title":"Phase engineering of H/T-Nb2O5 homojunction for enhanced lithium-ion storage","authors":"Sheng Li , Jun Li , Wenjie Zhang , Sherif A. El‐Khodary , Yubo Luo , Dickon H.L. Ng , Xiaoshui Peng , Jiabiao Lian","doi":"10.1016/j.chphma.2024.09.002","DOIUrl":"10.1016/j.chphma.2024.09.002","url":null,"abstract":"<div><div>Phase engineering has gained significant attention in energy-storage applications due to its ability to tailor the physicochemical properties and functionalities of electrode materials. In this study, we demonstrate the in-situ partial phase conversion of niobium pentoxide (Nb<sub>2</sub>O<sub>5</sub>), resulting in the formation of a monoclinic/orthorhombic (H/T-Nb<sub>2</sub>O<sub>5</sub>) heterophase homojunction. This study further confirms that the unique heterophase interface plays a crucial role in regulating the local electronic environment, resulting in charge redistribution, the formation of an internal electric field, and enhanced electron transfer. Moreover, the presence of abundant phase interfaces offers additional reactive sites for Li<sup>+</sup> ion adsorption, thereby enhancing reaction dynamics. The synergistic effects within the H/T-Nb<sub>2</sub>O<sub>5</sub> homojunction are reflected in its high Li<sup>+</sup> storage capacity (413 mAh g<sup>−1</sup> at 100 mA g<sup>−1</sup>), superior rate capability, and cycling stability. Thus, this study demonstrates that the construction of heterophase homojunctions offers a promising strategy for developing high-performance anode materials for efficient Li-ion storage.</div></div>","PeriodicalId":100236,"journal":{"name":"ChemPhysMater","volume":"4 1","pages":"Pages 3-8"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solid-electrolyte interphases for all-solid-state batteries 全固态电池的固体-电解质界面

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-11-05 DOI: 10.1016/j.chphma.2024.09.006

Yu Xia , Xu Han , Yue Ji , Simeng Zhang , Saiqi Wei , Yue Gong , Junyi Yue , Yueyue Wang , Xiaona Li , Zhiqiang Fang , Changtai Zhao , Jianwen Liang

Interfacial engineering, particularly the design of artificial solid-electrolyte interphases (SEIs), has been successfully applied in all-solid-state batteries (ASSLBs) for industrial applications. However, a fundamental understanding of the synthesis and mechanism models of artificial SEIs in all-solid-state Li-ion batteries remains limited. In this review, recent advances in designing and synthesizing artificial SEIs for ASSLBs to solve interfacial issues are thoroughly discussed, covering three main preparation methods and their technical routes: 1) atomic layer deposition, 2) sol-gel methods, and 3) mechanical ball-milling methods. Moreover, advanced ex-situ characterization techniques for artificial SEIs are comprehensively summarized. Finally, this review provides perspectives on techniques for the interface engineering of artificial SEIs for ASSLBs, with focus on promising methods for industrial applications.

界面工程，特别是人工固体-电解质界面（SEIs）的设计，已经成功地应用于全固态电池（ASSLBs）的工业应用。然而，对全固态锂离子电池中人工sei的合成和机理模型的基本理解仍然有限。本文综述了近年来为解决asslb界面问题而设计和合成人工SEIs的研究进展，涵盖了原子层沉积法、溶胶-凝胶法和机械球磨法三种主要制备方法及其技术路线。此外，本文还对近年来人工sei的非原位表征技术进行了综述。最后，对asslb人工sei界面工程技术进行了展望，重点介绍了具有工业应用前景的方法。

引用次数: 0

Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage 在具有高比表面积的 VO2 纳米结构中引入 Ce 离子和 O2 缺陷，实现 Zn 离子的高效水溶液储存

ChemPhysMater

Pub Date : 2025-01-01 Epub Date: 2024-06-14 DOI: 10.1016/j.chphma.2024.05.004

Mingying Bao , Zhengchunyu Zhang , Xuguang An , Baojuan Xi , Shenglin Xiong

Positive electrodes play a decisive role in exploring the Zn²⁺ storage mechanism and improving the electrochemical performance of aqueous Zn-ion batteries (AZIBs). Feasible design and preparation of cathode materials have been crucial for AZIBs in recent years. Herein, taking the advantage of the tunnel structure of VO₂, which can withstand volume change during charging/discharging, VO₂ doped with Ce ions is synthesized by a simple one-step hydrothermal method and oxygen vacancies are synchronously generated during synthesis. It delivers a capacity of 158.5 mAh g⁻¹ at the current density of 5 A g⁻¹ after 1000 cycles and exhibits an excellent energy density of 312.8 Wh kg⁻¹ at the power density of 142 W kg⁻¹. The structural modification and prospect of enhancing its conductivity by doping with rare-earth metals and introducing oxygen vacancies may aid in improving the stability of AZIBs in the future.

正极对于探索Zn2+的储存机理和提高水性锌离子电池（AZIBs）的电化学性能起着决定性作用。可行的阴极材料设计和制备是近年来azib的关键。本文利用VO2的隧道结构可以承受充放电过程中体积的变化，通过简单的一步水热法合成了掺杂Ce离子的VO2，并且在合成过程中同步产生了氧空位。在5a g−1电流密度下，经过1000次循环后，其容量可达158.5 mAh g−1；在142w kg−1功率密度下，其能量密度可达312.8 Wh kg−1。通过掺杂稀土金属和引入氧空位对azib的结构进行修饰和提高其导电性的前景可能有助于提高azib的稳定性。

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