Material-extrusion-based 3D printing technology has shown advantages in promoting the on-demand fabrication of silicone-based flexible thermal interface materials (TIMs). However, the incompatibility between high-loading fillers and silicone matrix seriously deteriorates the ink printability and the comprehensive mechanical strength, leaving a great challenge in designing multi-functional silicone elastomers. In this work, a strategy of constructing dual-filler networks for 3D printable thermally conductive silicone elastomers was proposed. For silicone inks, the fumed silica nanoparticles with the branched structure realized the ink thixotropy. Meanwhile, fumed silica with small-scaled island structure guaranteed the self-supporting ability of printed filaments without sacrificing the ink extrudability. Multi-scaled AlN micro-spheres with silane modification were close-packed to construct continuous thermally conductive pathways. Dual-filler networks realized the ink printability and synergistically enhanced thermally conductive and mechanical properties. The 3D-printed products could also be shaped into various architectures to fit the heating objects. Meanwhile, it succeeded in realizing a superior thermal conductivity of up to 5.50 W m−1 K−1 even at −80 °C, a resilience of above 90% at 40% strain, and stable heat dissipation capacity over a wide temperature range of −80 to 200 °C. Therefore, our work could inspire the utilization of 3D printing in fabricating elastomers with functional architectures.
基于材料挤压的3D打印技术在促进硅基柔性热界面材料（TIMs）的按需制造方面显示出优势。然而，高负荷填料与有机硅基体的不相容性严重影响了油墨的可印刷性和综合机械强度，给多功能有机硅弹性体的设计带来了很大的挑战。在这项工作中，提出了一种构建双填充网络的策略，用于3D打印导热硅弹性体。对于有机硅油墨，气相二氧化硅纳米颗粒具有支链结构，实现了油墨的触变性。同时，具有小尺寸岛状结构的气相二氧化硅保证了印刷长丝的自支撑能力，同时又不牺牲油墨的可挤出性。硅烷修饰的多尺度AlN微球被紧密排列以构建连续的导热通道。双填料网络实现了油墨的可印刷性，并协同提高了导热性能和机械性能。3d打印产品还可以塑造成各种结构，以适应加热物体。同时，它成功地实现了优异的导热系数高达5.50 W m−1 K−1，即使在−80 °C下，40%应变下的回弹性也超过90%，并且在−80至200 °C的宽温度范围内具有稳定的散热能力。因此，我们的工作可以激发3D打印在制造具有功能结构的弹性体中的应用。
{"title":"Establishing the custom 3D printing of thermally conductive elastomer composites with flexibility and resilience by coupling dual-filler networks","authors":"Junrui Tan, Guizhi Zhu, Mingwei Yang, Qiong Wu, Yong Li, Longfei Tan, Xianwei Meng","doi":"10.1016/j.cej.2026.174040","DOIUrl":"https://doi.org/10.1016/j.cej.2026.174040","url":null,"abstract":"Material-extrusion-based 3D printing technology has shown advantages in promoting the on-demand fabrication of silicone-based flexible thermal interface materials (TIMs). However, the incompatibility between high-loading fillers and silicone matrix seriously deteriorates the ink printability and the comprehensive mechanical strength, leaving a great challenge in designing multi-functional silicone elastomers. In this work, a strategy of constructing dual-filler networks for 3D printable thermally conductive silicone elastomers was proposed. For silicone inks, the fumed silica nanoparticles with the branched structure realized the ink thixotropy. Meanwhile, fumed silica with small-scaled island structure guaranteed the self-supporting ability of printed filaments without sacrificing the ink extrudability. Multi-scaled AlN micro-spheres with silane modification were close-packed to construct continuous thermally conductive pathways. Dual-filler networks realized the ink printability and synergistically enhanced thermally conductive and mechanical properties. The 3D-printed products could also be shaped into various architectures to fit the heating objects. Meanwhile, it succeeded in realizing a superior thermal conductivity of up to 5.50 W m<ce:sup loc=\"post\">−1</ce:sup> K<ce:sup loc=\"post\">−1</ce:sup> even at −80 °C, a resilience of above 90% at 40% strain, and stable heat dissipation capacity over a wide temperature range of −80 to 200 °C. Therefore, our work could inspire the utilization of 3D printing in fabricating elastomers with functional architectures.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"9 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-10DOI: 10.1016/j.cej.2026.173995
Abdul Kareem Kalathil Soopy, Shengzhong (Frank) Liu, Adel Najar
Metal-halide-based perovskite single crystals (SCs) now rival epitaxial III–V materials for high-performance photodetection, yet can be grown from solution in minutes on almost any substrate. Recent “crystal-by-design” protocols—inverse-temperature, anti-solvent, and laser-assisted cooling routes—routinely deliver millimeter-scale boules and laterally patterned micro/nanowires with defect densities below 1010 cm−3. Dimensional tuning, from bulk crystals to microstructures, thin films, and nanowires, has further enhanced device performance by facilitating tailored charge transport pathways. When integrated into photoconductor-type architectures, these SCs have demonstrated remarkable improvements in response speed, detectivity, and responsivity. Moreover, strategies such as surface passivation and thickness optimization have contributed to enhanced stability and more efficient carrier dynamics. Concurrently, the incorporation of functional materials—including graphene, WS₂, quantum dots, and carbon nanotubes—into interface engineering and heterojunction design has significantly improved charge separation efficiency and suppressed carrier recombination. These advances have already yielded flexible, pixelated imagers for X-ray and hyperspectral cameras, biocompatible sensors capable of single-photon-level fluorescence lifetime imaging, device architectures, and broadband photodetection capabilities. Continued convergence of scalable growth, surface science, and heterogeneous integration is poised to transition perovskite single-crystal photodetectors from laboratory curiosities to commercial platforms within the next few years.
{"title":"Perovskite single-crystal photodetectors: Recent breakthroughs for superior device performance","authors":"Abdul Kareem Kalathil Soopy, Shengzhong (Frank) Liu, Adel Najar","doi":"10.1016/j.cej.2026.173995","DOIUrl":"https://doi.org/10.1016/j.cej.2026.173995","url":null,"abstract":"Metal-halide-based perovskite single crystals (SCs) now rival epitaxial III–V materials for high-performance photodetection, yet can be grown from solution in minutes on almost any substrate. Recent “crystal-by-design” protocols—inverse-temperature, anti-solvent, and laser-assisted cooling routes—routinely deliver millimeter-scale boules and laterally patterned micro/nanowires with defect densities below 10<ce:sup loc=\"post\">10</ce:sup> cm<ce:sup loc=\"post\">−3</ce:sup>. Dimensional tuning, from bulk crystals to microstructures, thin films, and nanowires, has further enhanced device performance by facilitating tailored charge transport pathways. When integrated into photoconductor-type architectures, these SCs have demonstrated remarkable improvements in response speed, detectivity, and responsivity. Moreover, strategies such as surface passivation and thickness optimization have contributed to enhanced stability and more efficient carrier dynamics. Concurrently, the incorporation of functional materials—including graphene, WS₂, quantum dots, and carbon nanotubes—into interface engineering and heterojunction design has significantly improved charge separation efficiency and suppressed carrier recombination. These advances have already yielded flexible, pixelated imagers for X-ray and hyperspectral cameras, biocompatible sensors capable of single-photon-level fluorescence lifetime imaging, device architectures, and broadband photodetection capabilities. Continued convergence of scalable growth, surface science, and heterogeneous integration is poised to transition perovskite single-crystal photodetectors from laboratory curiosities to commercial platforms within the next few years.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"246 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soil salinization and phosphorus (P) scarcity constrain agroecosystem sustainability. In this study, Acorus calamus hydrochar (ACH) and chicken manure hydrochar (CMH) were prepared via hydrothermal carbonization and applied to achieve the simultaneous remediation and fertilization of saline-alkaline soil. The total P was enriched in the hydrochars (3.78–9.19 and 16.23–22.39 mg/g for ACH and CMH) and labile P was transformed to stable orthophosphates. Both hydrochars reduced salinity and improved fertility with distinct functions. ACH excelled in salinity alleviation and enhanced the availability of soil P, while increasing available potassium by 26.5% to 117.23 mg/kg. CMH provided a long-term P source via mineral crystallization, increasing available P (up 72.6% to 6.99 mg/kg) and P measured by diffusive gradients in thin films (up 74.0% to 234.29 μg/L), while also enhancing available nitrogen by 29.1%. The microbial community analysis revealed ACH enriched Proteobacteria (54.65%) and saprotrophic fungi, which are associated with organic P cycling processes. In contrast, CMH promoted salt-tolerant Firmicutes (12.80%) and boosted phytase activities (up to 162%), facilitating P release. Therefore, the production and application of P-rich hydrochars could be a promising strategy for the amelioration of saline-alkaline soil, offering novel insights for P recycling and sustainable land management.
{"title":"Simultaneous remediation and fertilization of saline-alkaline soil via the application of various phosphorus-rich hydrochars","authors":"Ran Duan, Yuxin Yang, Xuchen Zhang, Junxia Wang, Jipeng Luo, Xiaoqiang Cui, Zhanjun Cheng, Guanyi Chen","doi":"10.1016/j.cej.2026.174020","DOIUrl":"https://doi.org/10.1016/j.cej.2026.174020","url":null,"abstract":"Soil salinization and phosphorus (P) scarcity constrain agroecosystem sustainability. In this study, <ce:italic>Acorus calamus</ce:italic> hydrochar (ACH) and chicken manure hydrochar (CMH) were prepared via hydrothermal carbonization and applied to achieve the simultaneous remediation and fertilization of saline-alkaline soil. The total P was enriched in the hydrochars (3.78–9.19 and 16.23–22.39 mg/g for ACH and CMH) and labile P was transformed to stable orthophosphates. Both hydrochars reduced salinity and improved fertility with distinct functions. ACH excelled in salinity alleviation and enhanced the availability of soil P, while increasing available potassium by 26.5% to 117.23 mg/kg. CMH provided a long-term P source via mineral crystallization, increasing available P (up 72.6% to 6.99 mg/kg) and P measured by diffusive gradients in thin films (up 74.0% to 234.29 μg/L), while also enhancing available nitrogen by 29.1%. The microbial community analysis revealed ACH enriched <ce:italic>Proteobacteria</ce:italic> (54.65%) and saprotrophic fungi, which are associated with organic P cycling processes. In contrast, CMH promoted salt-tolerant <ce:italic>Firmicutes</ce:italic> (12.80%) and boosted phytase activities (up to 162%), facilitating P release. Therefore, the production and application of P-rich hydrochars could be a promising strategy for the amelioration of saline-alkaline soil, offering novel insights for P recycling and sustainable land management.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"39 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The development of efficient bifunctional electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is critical for achieving sustainable hydrogen production through water splitting. A fundamental challenge lies in combining high catalytic activity with rapid charge transport, as conventional electrocatalysts must often strike a balance between these properties. For instance, transition metal dichalcogenides such as MoS2 provide abundant active sites, but suffer from limited conductivity, whereas topological insulators such as Sb2Te3 possess highly conductive surface states, yet lack sufficient catalytic activity. To address this limitation, we constructed a heterojunction by integrating MoS2 with Sb2Te3 on nickel–molybdenum foam (MoS2/Sb2Te3@NMF). The resulting hybrid catalyst exhibited exceptional bifunctional performance in an alkaline electrolyte, achieving ultralow overpotentials of 14 mV for HER and 16 mV for OER at 10 mA·cm−2, with Tafel slopes of 16 and 70 mV·dec−1, respectively, comparable with those of noble metal benchmarks. Mechanistic analysis revealed that the metallic topological surface states of Sb2Te3 promote a significant charge redistribution and the formation of a built-in electric field at the heterointerface, which collectively enhance the charge transfer and optimize the adsorption free energy of reaction intermediates. This work shows that the combination of topological insulators with transition metal dichalcogenides represents an ideal design strategy for high-performance bifunctional electrocatalysts, highlighting the broad potential of topological heterointerfaces in advancing electrocatalytic hydrogen production.
{"title":"Engineering interfacial charge redistribution in Sb2Te3/MoS2 topological heterojunction for enhanced bifunctional electrocatalysis","authors":"Shoujun Ma, Shouyi Wang, Dingxuan Zhang, Xuan Fang, Ying Yang, Dan Fang, Haiyan Tao, Baitong Zhou, Jiayao Jiang, Junjie Pan, Dengkui Wang, Yong Wang, Hao Yan, Jinhua Li, Xiaohua Wang, Dongbo Wang","doi":"10.1016/j.cej.2026.174016","DOIUrl":"https://doi.org/10.1016/j.cej.2026.174016","url":null,"abstract":"The development of efficient bifunctional electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is critical for achieving sustainable hydrogen production through water splitting. A fundamental challenge lies in combining high catalytic activity with rapid charge transport, as conventional electrocatalysts must often strike a balance between these properties. For instance, transition metal dichalcogenides such as MoS<ce:inf loc=\"post\">2</ce:inf> provide abundant active sites, but suffer from limited conductivity, whereas topological insulators such as Sb<ce:inf loc=\"post\">2</ce:inf>Te<ce:inf loc=\"post\">3</ce:inf> possess highly conductive surface states, yet lack sufficient catalytic activity. To address this limitation, we constructed a heterojunction by integrating MoS<ce:inf loc=\"post\">2</ce:inf> with Sb<ce:inf loc=\"post\">2</ce:inf>Te<ce:inf loc=\"post\">3</ce:inf> on nickel–molybdenum foam (MoS<ce:inf loc=\"post\">2</ce:inf>/Sb<ce:inf loc=\"post\">2</ce:inf>Te<ce:inf loc=\"post\">3</ce:inf>@NMF). The resulting hybrid catalyst exhibited exceptional bifunctional performance in an alkaline electrolyte, achieving ultralow overpotentials of 14 mV for HER and 16 mV for OER at 10 mA·cm<ce:sup loc=\"post\">−2</ce:sup>, with Tafel slopes of 16 and 70 mV·dec<ce:sup loc=\"post\">−1</ce:sup>, respectively, comparable with those of noble metal benchmarks. Mechanistic analysis revealed that the metallic topological surface states of Sb<ce:inf loc=\"post\">2</ce:inf>Te<ce:inf loc=\"post\">3</ce:inf> promote a significant charge redistribution and the formation of a built-in electric field at the heterointerface, which collectively enhance the charge transfer and optimize the adsorption free energy of reaction intermediates. This work shows that the combination of topological insulators with transition metal dichalcogenides represents an ideal design strategy for high-performance bifunctional electrocatalysts, highlighting the broad potential of topological heterointerfaces in advancing electrocatalytic hydrogen production.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"30 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-10DOI: 10.1016/j.cej.2026.174038
Hongyu Liang, Hui Li, Shengda Tang, Jiahui Li, Zhaomin Zhu, Li Pan, Yongfeng Bu
Carbon-based supercapacitors represent one of the most widely utilized commercial capacitive energy storage devices. Organic electrolyte systems, particularly tetraethylammonium tetrafluoroborate/acetonitrile (TEABF4/AN), have maintained market dominance for decades due to their superior cost-effectiveness and performance characteristics. However, the potential of conventional carbon-tuning methods to enhance capacitance is now largely exhausted. Herein, we demonstrate that introducing a high dielectric constant organic salt (triethylmethylammonium tetrafluoroborate, TEMABF4) as an electrolyte additive can dramatically increase capacitance. At an optimal concentration of 2 wt% TEMABF4, the capacitance increases by 26% to exceed 200 F g−1, achieving an exceptional energy density of 50 Wh kg−1. This enhancement is due to the smaller radius and asymmetric structure of TEMA+ that compresses the double-layer thickness, surpassing traditional capacitance limits. The underlying mechanism is validated through in situ Raman spectroscopy and molecular dynamics simulations. This electrolyte additive paves the way for high-energy-density supercapacitors by transcending current capacitance limits.
碳基超级电容器是应用最广泛的商用电容储能装置之一。有机电解质系统，特别是四氟硼酸四乙基铵/乙腈（TEABF4/AN），由于其优越的成本效益和性能特点，几十年来一直保持着市场主导地位。然而，传统碳调谐方法提高电容的潜力现在基本上已经耗尽。在此，我们证明了引入高介电常数有机盐（三乙基甲基四氟硼酸铵，TEMABF4）作为电解质添加剂可以显着增加电容。当TEMABF4的最佳浓度为2 wt%时，电容增加26%，超过200 F g−1，实现了50 Wh kg−1的特殊能量密度。这种增强是由于TEMA+的半径更小，结构不对称，压缩了双层厚度，超越了传统的电容限制。通过原位拉曼光谱和分子动力学模拟验证了其潜在机制。这种电解质添加剂通过超越电流电容限制为高能量密度超级电容器铺平了道路。
{"title":"A high-dielectric additive for enhanced supercapacitor performance with N-doped carbon electrodes","authors":"Hongyu Liang, Hui Li, Shengda Tang, Jiahui Li, Zhaomin Zhu, Li Pan, Yongfeng Bu","doi":"10.1016/j.cej.2026.174038","DOIUrl":"https://doi.org/10.1016/j.cej.2026.174038","url":null,"abstract":"Carbon-based supercapacitors represent one of the most widely utilized commercial capacitive energy storage devices. Organic electrolyte systems, particularly tetraethylammonium tetrafluoroborate/acetonitrile (TEABF<ce:inf loc=\"post\">4</ce:inf>/AN), have maintained market dominance for decades due to their superior cost-effectiveness and performance characteristics. However, the potential of conventional carbon-tuning methods to enhance capacitance is now largely exhausted. Herein, we demonstrate that introducing a high dielectric constant organic salt (triethylmethylammonium tetrafluoroborate, TEMABF<ce:inf loc=\"post\">4</ce:inf>) as an electrolyte additive can dramatically increase capacitance. At an optimal concentration of 2 wt% TEMABF<ce:inf loc=\"post\">4</ce:inf>, the capacitance increases by 26% to exceed 200 F g<ce:sup loc=\"post\">−1</ce:sup>, achieving an exceptional energy density of 50 Wh kg<ce:sup loc=\"post\">−1</ce:sup>. This enhancement is due to the smaller radius and asymmetric structure of TEMA<ce:sup loc=\"post\">+</ce:sup> that compresses the double-layer thickness, surpassing traditional capacitance limits. The underlying mechanism is validated through in situ Raman spectroscopy and molecular dynamics simulations. This electrolyte additive paves the way for high-energy-density supercapacitors by transcending current capacitance limits.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"32 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li4SiO4 has the expansive prospect for high-temperature CO₂ capture. However, the traditional Li4SiO4 powders or pebble adsorbents have a low adsorption efficiency and ordinary cycle stability. In the study, the core-shell grained Li4SiO4 adsorbent pebble was fabricated by using a novel solidification of suspension. The phase composition, microstructure, crushing load, and specific surface area were characterized. And the dynamic and cyclic adsorption/desorption properties were investigated. The core-shell grained Li4SiO4 pebbles displayed excellent dynamic adsorption capacity of 32.7 wt%, and high cyclic adsorption capacity of 29.8–32.4 wt% during 20 cycles. DFT calculations revealed that the presence of Li and O vacancies on the rough poriferous core significantly lowered the diffusion energy barrier to improve CO2 adsorption capacity. Besides, the dense shell prevented the structure from collapsing. In generally, the core-shell grained Li4SiO4 pebbles by solidification of suspension, as an efficient CO2 ceramic adsorbent, will have great application potential in the field of high-temperature CO2 adsorption.
{"title":"Preparation of the core-shell grained Li4SiO4 pebble with an excellent CO2 adsorption capacity by solidification of suspension","authors":"Shuxian Wu, Jingli Shi, Hailiang Wang, Peng Yang, Aixia Guo, Penghe Xu, Chaoyang Jia, Lina Zheng, Feng Yu, Hongxia Lu, Hongliang Xu, Hailong Wang","doi":"10.1016/j.cej.2026.174037","DOIUrl":"https://doi.org/10.1016/j.cej.2026.174037","url":null,"abstract":"Li<ce:inf loc=\"post\">4</ce:inf>SiO<ce:inf loc=\"post\">4</ce:inf> has the expansive prospect for high-temperature CO₂ capture. However, the traditional Li<ce:inf loc=\"post\">4</ce:inf>SiO<ce:inf loc=\"post\">4</ce:inf> powders or pebble adsorbents have a low adsorption efficiency and ordinary cycle stability. In the study, the core-shell grained Li<ce:inf loc=\"post\">4</ce:inf>SiO<ce:inf loc=\"post\">4</ce:inf> adsorbent pebble was fabricated by using a novel solidification of suspension. The phase composition, microstructure, crushing load, and specific surface area were characterized. And the dynamic and cyclic adsorption/desorption properties were investigated. The core-shell grained Li<ce:inf loc=\"post\">4</ce:inf>SiO<ce:inf loc=\"post\">4</ce:inf> pebbles displayed excellent dynamic adsorption capacity of 32.7 wt%, and high cyclic adsorption capacity of 29.8–32.4 wt% during 20 cycles. DFT calculations revealed that the presence of Li and O vacancies on the rough poriferous core significantly lowered the diffusion energy barrier to improve CO<ce:inf loc=\"post\">2</ce:inf> adsorption capacity. Besides, the dense shell prevented the structure from collapsing. In generally, the core-shell grained Li<ce:inf loc=\"post\">4</ce:inf>SiO<ce:inf loc=\"post\">4</ce:inf> pebbles by solidification of suspension, as an efficient CO<ce:inf loc=\"post\">2</ce:inf> ceramic adsorbent, will have great application potential in the field of high-temperature CO<ce:inf loc=\"post\">2</ce:inf> adsorption.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"119 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-10DOI: 10.1016/j.cej.2026.173969
Shiquan Huang, Ling Fang, Siling Luo, Hao Deng, Tomas Ramirez Reina, Guangting Zou, Qing Liu, Rongbin Zhang, Maohong Fan, Jinshu Tian, Gang Feng, Runping Ye
Chemical CO2 recycling via direct CO2 hydrogenation to ethanol represents a forward-looking route to curb greenhouse gases emissions while simultaneously alleviating the pressure from fossil fuel extraction and consumption. However, this is a complex chemical process whose successful implementation requires a careful trade-off among its key reaction steps: CO2 activation, selective CC coupling, and hydrogenation termination. Achieving optimal ethanol synthesis requires a balance of surface intermediates and promoting CC coupling, as indicated by thermodynamic and kinetic constraints. Herein, we have developed an efficient FeGa-doped Cu/Al2O3 catalyst prepared by the sol-gel method, achieving a space-time yield of 1.48 mmol·gcat−1·h−1 for ethanol. The Al2O3 support could disperse Cu active sites and generate oxygen vacancies for CO2 activation. Furthermore, Fe doping and Ga modification synergistically enhance both CC coupling capability and the non-dissociative CO activation ability of the Cu/Al2O3 catalyst, ultimately boosting CO2 conversion to ethanol. In-situ DRIFTS spectra reveal a potential catalytic mechanism for ethanol formation: CHx⁎ species couple with non-dissociated CO⁎ at the Cu-FeGaOx interface, followed by hydrogenation to ethanol. Overall, this work proposes a dual-promoter strategy that incorporates both Fe and Ga in a multi-competent Cu-based formulation, offering a novel approach to designing tunable catalysts for low-carbon ethanol synthesis.
{"title":"Tailoring electronic and interfacial synergy in Cu-FeGa/Al2O3 for direct CO2 hydrogenation to ethanol","authors":"Shiquan Huang, Ling Fang, Siling Luo, Hao Deng, Tomas Ramirez Reina, Guangting Zou, Qing Liu, Rongbin Zhang, Maohong Fan, Jinshu Tian, Gang Feng, Runping Ye","doi":"10.1016/j.cej.2026.173969","DOIUrl":"https://doi.org/10.1016/j.cej.2026.173969","url":null,"abstract":"Chemical CO<ce:inf loc=\"post\">2</ce:inf> recycling via direct CO<ce:inf loc=\"post\">2</ce:inf> hydrogenation to ethanol represents a forward-looking route to curb greenhouse gases emissions while simultaneously alleviating the pressure from fossil fuel extraction and consumption. However, this is a complex chemical process whose successful implementation requires a careful trade-off among its key reaction steps: CO<ce:inf loc=\"post\">2</ce:inf> activation, selective C<ce:glyph name=\"sbnd\"></ce:glyph>C coupling, and hydrogenation termination. Achieving optimal ethanol synthesis requires a balance of surface intermediates and promoting C<ce:glyph name=\"sbnd\"></ce:glyph>C coupling, as indicated by thermodynamic and kinetic constraints. Herein, we have developed an efficient FeGa-doped Cu/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> catalyst prepared by the sol-gel method, achieving a space-time yield of 1.48 mmol·g<ce:inf loc=\"post\">cat</ce:inf><ce:sup loc=\"post\">−1</ce:sup>·h<ce:sup loc=\"post\">−1</ce:sup> for ethanol. The Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> support could disperse Cu active sites and generate oxygen vacancies for CO<ce:inf loc=\"post\">2</ce:inf> activation. Furthermore, Fe doping and Ga modification synergistically enhance both C<ce:glyph name=\"sbnd\"></ce:glyph>C coupling capability and the non-dissociative CO activation ability of the Cu/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> catalyst, ultimately boosting CO<ce:inf loc=\"post\">2</ce:inf> conversion to ethanol. In-situ DRIFTS spectra reveal a potential catalytic mechanism for ethanol formation: CH<ce:inf loc=\"post\">x</ce:inf><ce:sup loc=\"post\">⁎</ce:sup> species couple with non-dissociated CO<ce:sup loc=\"post\">⁎</ce:sup> at the Cu-FeGaO<ce:inf loc=\"post\">x</ce:inf> interface, followed by hydrogenation to ethanol. Overall, this work proposes a dual-promoter strategy that incorporates both Fe and Ga in a multi-competent Cu-based formulation, offering a novel approach to designing tunable catalysts for low-carbon ethanol synthesis.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"89 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-10DOI: 10.1016/j.cej.2026.173960
Zhuangxin Wei, Tao Wang, Pan Wang, Jianming Pan
{"title":"Synergistic integration of oil-mediated adhesion and post-crosslinking imprinting technology for surface imprinted polymers to precision separation of 2′-deoxyadenosine","authors":"Zhuangxin Wei, Tao Wang, Pan Wang, Jianming Pan","doi":"10.1016/j.cej.2026.173960","DOIUrl":"https://doi.org/10.1016/j.cej.2026.173960","url":null,"abstract":"","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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