Chem Catalysis最新文献_第5页

Emerging main-group hydrides for dinitrogen conversion 用于二氮转化的新兴主基氢化物

IF 9.4

Chem Catalysis Pub Date : 2026-08-17 DOI: 10.1016/j.checat.2026.101823

Yongli Cai, Jianping Guo, Ping Chen

引用次数: 0

Thermodynamic framework for predicting oxide electrocatalyst stability for acidic oxygen evolution reaction 预测酸性析氧反应中氧化物电催化剂稳定性的热力学框架

IF 9.4

Chem Catalysis Pub Date : 2026-08-12 DOI: 10.1016/j.checat.2026.101826

Siwen Wang, Li Qin Zhou, Chen Ling

引用次数: 0

Lattice distortion-induced Cu–Fe spin engineering rectifies N-intermediate adsorption to reinforce C–N coupling for urea electrosynthesis 晶格畸变诱导的Cu-Fe自旋工程纠正了n中间体吸附，增强了尿素电合成中的C-N偶联

IF 9.4

Chem Catalysis Pub Date : 2026-08-10 DOI: 10.1016/j.checat.2026.101824

Zixin Liu, Min Zhou, Yaqiong Su, Tairan Pang, Chuanling Si, Hu Li

引用次数: 0

Asymmetric [2π+2σ] cycloaddition of bicyclo[1.1.0]butanes enabled by chiral tetracoordinated boron catalysis 手性四配位硼催化双环[1.1.0]丁烷的不对称[2π+2σ]环加成

IF 9.4

Chem Catalysis Pub Date : 2026-08-05 DOI: 10.1016/j.checat.2026.101809

Xiao Wang,Wangyang Li,Yanying Huang,Qiuling Song

引用次数: 0

Gradient alloy engineering enables photocatalytic methane oxidation to methanol via synergistic charge separation and intermediate regulation 梯度合金工程使光催化甲烷氧化为甲醇，通过协同电荷分离和中间调节

IF 9.4

Chem Catalysis Pub Date : 2026-08-04 DOI: 10.1016/j.checat.2026.101808

Peipei You,Peng Wang,Haolong Zhang,Zhongkun Li,Zhongyuan Zhou,Yong Zheng,Youzhu Yu,Xinling Zhang,Ruifeng Chong,Peng Chen

{"title":"Gradient alloy engineering enables photocatalytic methane oxidation to methanol via synergistic charge separation and intermediate regulation","authors":"Peipei You,Peng Wang,Haolong Zhang,Zhongkun Li,Zhongyuan Zhou,Yong Zheng,Youzhu Yu,Xinling Zhang,Ruifeng Chong,Peng Chen","doi":"10.1016/j.checat.2026.101808","DOIUrl":"https://doi.org/10.1016/j.checat.2026.101808","url":null,"abstract":"Photocatalytic selective oxidation of methane to methanol represents a sustainable route for hydrocarbon valorization, yet it suffers from the trade-off between activity and selectivity due to uncontrolled radicals and inefficient intermediate management. Here, we report a gradient alloying strategy by constructing a TiO2-supported Au–Cu alloy with adjacent Cu single atoms, creating an asymmetric electronic structure. Electronegativity-driven electron transfer makes Cu single atoms an electron sink and Au a hole accumulator, establishing directional charge-transfer channels that mitigate charge recombination. Crucially, this electronic gradient tunes intermediate adsorption: electron-enriched Cu single atoms facilitate ∗OOH activation, while electron-deficient Au weakens CH3OH adsorption and stabilizes its C–H bonds, preventing dehydrogenation. Consequently, the optimized catalyst achieves a CH3OH yield of 3,666 μmol g−1 h−1 (13.8- and 9.6-fold improvements over its monometallic counterparts) with selectivity of 63.1%. This work provides a new paradigm for designing cooperative catalytic centers for complex photocatalysis.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"6 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148666066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient CO2-to-bioproduct conversion with an Ag/Cu superlattice in an integrated electrochemical microbial system 集成电化学微生物系统中Ag/Cu超晶格的高效二氧化碳转化为生物产品

IF 9.4

Chem Catalysis Pub Date : 2026-07-16 DOI: 10.1016/j.checat.2026.101761

Qin Yang, Yanwei Lum

引用次数: 0

High-valence Lewis acid perovskite anode with fast OH adsorption for alkaline OER in AEMWE AEMWE中碱性OER快速吸附的高价路易斯酸钙钛矿阳极

IF 9.4

Chem Catalysis Pub Date : 2026-07-16 DOI: 10.1016/j.checat.2026.101797

Youze Zeng, Jianbing Zhu

引用次数: 0

Carbon support engineering for mass transport and durability in PEMFC catalyst layers PEMFC催化剂层中质量传输和耐久性的碳支撑工程

IF 9.4

Chem Catalysis Pub Date : 2026-07-15 DOI: 10.1016/j.checat.2026.101778

Ruyue Gao, Jiaxin Li, Haiyang Fan, Feifei Shi, Wenxiu Yang, Bo Wang

引用次数: 0

Gas diffusion electrode stability in direct solar-driven electrochemical CO2 reduction under simulated diurnal irradiance 模拟日辐照下太阳能驱动的电化学CO2还原过程中气体扩散电极的稳定性

IF 9.4

Chem Catalysis Pub Date : 2026-07-08 DOI: 10.1016/j.checat.2026.101798

Sol A. Lee, Myeong Je Jang, Zhiyuan Qi, Lily Shiau, Laura Paradis-Fortin, Dilworth Y. Parkinson, Walter S. Drisdell, Adam C. Nielander, Chengxiang Xiang, Harry A. Atwater

{"title":"Gas diffusion electrode stability in direct solar-driven electrochemical CO2 reduction under simulated diurnal irradiance","authors":"Sol A. Lee, Myeong Je Jang, Zhiyuan Qi, Lily Shiau, Laura Paradis-Fortin, Dilworth Y. Parkinson, Walter S. Drisdell, Adam C. Nielander, Chengxiang Xiang, Harry A. Atwater","doi":"10.1016/j.checat.2026.101798","DOIUrl":"https://doi.org/10.1016/j.checat.2026.101798","url":null,"abstract":"Solar-driven electrochemical CO<ce:inf loc=\"post\">2</ce:inf> reduction (eCO<ce:inf loc=\"post\">2</ce:inf>R) is a promising approach for producing value-added chemicals from renewable energy sources. While integrated solar fuel reactors have been primarily studied under fixed conditions, their real-world deployment outdoors introduces significant challenges due to dynamic conditions such as fluctuating irradiance. We investigate the performance of a Cu gas diffusion electrode (GDE) as a model system for eCO<ce:inf loc=\"post\">2</ce:inf>R under simulated diurnal conditions. We find that under varying irradiance conditions, degradation of the Cu GDE can arise from the day-to-night transition, which occurs over extended time periods under “off” conditions. <ce:italic>Operand</ce:italic>o X-ray tomography reveals that pressure variations during this transition can trigger electrolyte incursion into the microporous layer, leading to increased hydrogen evolution. This work enhances our understanding of phenomena that may occur for CO<ce:inf loc=\"post\">2</ce:inf>R during diurnal operation of a GDE and suggests operational strategies for solar-driven eCO<ce:inf loc=\"post\">2</ce:inf>R devices to improve durability and reliability.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"25 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148538523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reversing and modulating enantioselectivity through achiral components in NHC catalysis NHC催化中通过非手性组分逆转和调节对映体选择性

IF 9.4

Chem Catalysis Pub Date : 2026-07-07 DOI: 10.1016/j.checat.2026.101780

Jiamiao Jin, Jixuan Zhang, Xing Yang, Yonggui Robin Chi

引用次数: 0