Chem Catalysis最新文献_第9页

Electroreductively driven C–H functionalization of arenes 芳烃电还原驱动的碳氢官能化反应

IF 9.4

Chem Catalysis Pub Date : 2025-04-24 DOI: 10.1016/j.checat.2025.101359

Pengfei Xie, Anzai Shi, Youai Qiu

引用次数: 0

Peptide catalysis: Trends and opportunities 肽催化：趋势与机遇

IF 9.4

Chem Catalysis Pub Date : 2025-04-21 DOI: 10.1016/j.checat.2025.101339

Tom H.R. Kuster, Tobias Schnitzer

引用次数: 0

Tandem catalytic strategy for converting biogas into carbon nanofibers 沼气转化为纳米碳纤维的串联催化策略

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101363

Hefei Li, Feng Jiao

引用次数: 0

Stabilizing metal nanoparticle catalysts in their dynamic processes 稳定金属纳米颗粒催化剂的动态过程

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101330

Lujie Liu, Wentao Yuan, Siyu Yao, Ang Cao, Liang Wang

引用次数: 0

Iridium nanoparticles embedded in ceria set a new benchmark for PEM water electrolyzers 在铈中嵌入铱纳米颗粒为PEM水电解槽树立了新的标杆

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101355

David Hernández-Castillo, Kai S. Exner

引用次数: 0

Interfacial structure engineering enhances photo-thermal CO2 hydrogenation over Ni-CeO2 nanocomposites 界面结构工程增强Ni-CeO2纳米复合材料的光热CO2加氢作用

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101361

Shikang Xiao, Lige Wang, Yunxiang Tang, Zhengyi Yang, Hao Wang, Chan Guo, Tingting Zhao, Yanyan Jiang, Xiaodong Wen, Fenglong Wang

{"title":"Interfacial structure engineering enhances photo-thermal CO2 hydrogenation over Ni-CeO2 nanocomposites","authors":"Shikang Xiao, Lige Wang, Yunxiang Tang, Zhengyi Yang, Hao Wang, Chan Guo, Tingting Zhao, Yanyan Jiang, Xiaodong Wen, Fenglong Wang","doi":"10.1016/j.checat.2025.101361","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101361","url":null,"abstract":"Metal-support interfaces play pivotal roles in governing the catalytic behaviors in heterogeneous catalysts, yet their optimized construction remains a formidable challenge. Here, we delve into the role of nickel-ceria interfaces in enhancing photo-thermal CO2 hydrogenation by designing a series of Ni/CeO2 composite catalysts with distinct interfacial features. The one with a well-defined nickel-ceria interface, achieved through lattice matching, demonstrates an exceptional CH4 production rate of 477.3 mmol gcat−1 h−1 (99.7% selectivity, 89.4% CO2 conversion) at 250°C under ambient pressure and light irradiation (200–1,100 nm, 2740 mW cm−2). This remarkable performance is credited to the distinctive metal-support interaction and efficient charge transfer at the interface. In contrast, catalysts lacking lattice-matched interfaces or featuring encapsulated nickel nanoparticles show inferior activity due to inhibited charge transfer and restricted access to active sites. These findings underscore the importance of interface engineering in optimizing photo-thermal catalysts for CO2 hydrogenation.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"28 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842105","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

How distorted nanotwins boost hydrogen evolution 扭曲的纳米孪晶如何促进氢的演化

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101362

Marie-Ingrid Richard, Clément Atlan

引用次数: 0

Spatially asymmetric catalyst design with electron-rich Cu sites to facilitate full-spectrum photo-Fenton-like catalysis 空间不对称催化剂设计，具有富电子的Cu位点，促进全谱光芬顿催化

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101358

Wei Zhang, Lan Wang, Fu Wang, Mingyang Xing, Chuanyi Wang, Jincai Zhao

{"title":"Spatially asymmetric catalyst design with electron-rich Cu sites to facilitate full-spectrum photo-Fenton-like catalysis","authors":"Wei Zhang, Lan Wang, Fu Wang, Mingyang Xing, Chuanyi Wang, Jincai Zhao","doi":"10.1016/j.checat.2025.101358","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101358","url":null,"abstract":"Heterogeneous photo-Fenton catalysis stands out as a promising advanced oxidation technology but is subject to slow reaction kinetics because the electron supply is insufficient to sustain the Fenton reaction. Here, we demonstrate an asymmetric-catalyst-based copper silicate nanotube (CSN) Janus design that simultaneously enables favorable full-spectrum solar absorption, H2O2 adsorption, and catalytic activity. The coordination asymmetry induces oxygen-vacancy-associated, electron-rich Cu(I) sites and an intrinsic electric field oriented from the Si-O to the Cu-O sublayer, synergistically driving the photoexcited electrons to compensate for the electron-donating capability of Cu sites, leading to remarkably enhanced H2O2 activation. The strong electron delocalization of Cu(I) sites reinforces the H2O2 adsorption on its adjacent bridging H sites. The energy barrier for H2O2 dissociation is vastly reduced (0.912 → 0.264 eV), boosting H2O2 utilization (54%, almost two times higher than that of conventional catalysts). The CSN-catalyzed photo-Fenton-like reaction attains long-lasting ·OH production, which affords exceptional performance for various types of organic pollutant elimination.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"58 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842106","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

Facile access to allylgermanes via nickela-electrocatalyzed germylative allylation 通过镍电催化的萌发性烯丙基化，易于获得烯丙基日耳曼

IF 9.4

Chem Catalysis Pub Date : 2025-04-17 DOI: 10.1016/j.checat.2025.101360

Xiaolin Ren, Yuan Huang

引用次数: 0

Regulating electronic density and interfacial electric field of high-entropy metallenes to enhance oxygen reduction reaction activity 调节高熵金属烯的电子密度和界面电场，提高氧还原反应活性

IF 9.4

Chem Catalysis Pub Date : 2025-04-15 DOI: 10.1016/j.checat.2025.101357

Wenning Liu, Li An, Pengfei Li, Yajie Fu, Xu Zhang, Dan Qu, Yichang Liu, Pu Hu, Xiayan Wang, Ning Jiang, Zaicheng Sun

{"title":"Regulating electronic density and interfacial electric field of high-entropy metallenes to enhance oxygen reduction reaction activity","authors":"Wenning Liu, Li An, Pengfei Li, Yajie Fu, Xu Zhang, Dan Qu, Yichang Liu, Pu Hu, Xiayan Wang, Ning Jiang, Zaicheng Sun","doi":"10.1016/j.checat.2025.101357","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101357","url":null,"abstract":"High-entropy metallenes (HEMs), combining high-entropy alloys and ultrathin nanosheets, exhibit lattice strain, geometric effects, and electronic modulation, enhancing oxygen reduction reaction (ORR) activity. We propose a strategy to manipulate the interfacial electric field and electronic density of states in HEMs by adjusting atomic radius and electronegativity differences. Integrating smaller atomic radius elements (Fe/Co/Ni) with larger ones (Pt/Pd/Mo) increases nanosheet curvature, altering the local electric field. Low-electronegativity Fe/Co/Ni/Mo elements lower the d-band center of Pd, and Pt further decreases it, reducing oxygen intermediate adsorption energy. PtPdFeCoNiMo HEMs, with sub-nanometer thickness, high curvature, microstrain, and optimized electronic structure, achieve ORR mass activity of 1.40 A·mgPt−1 at 0.9 V (vs. reversible hydrogen electrode [RHE]) in 0.1 M KOH, 21 times higher than Pt/C. They retain excellent performance after 20,000 cycles, with reduced energy barriers for the rate-determining ORR step.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"5 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832191","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