Chem Catalysis最新文献_第2页

Designing ionomers to control water content for low-voltage ethylene production from CO2 electrolysis 设计离子单体以控制二氧化碳电解低压乙烯生产的含水量

IF 9.4

Chem Catalysis Pub Date : 2025-08-27 DOI: 10.1016/j.checat.2025.101497

Maxwell Goldman, Aditya Prajapati, Nicholas R. Cross, Auston Clemens, An T. Chu, Laura Gutierrez, Michell Marufu, Eric Krall, Victoria Ehlinger, Thomas Moore, Eric B. Duoss, Sarah E. Baker, Christopher Hahn

{"title":"Designing ionomers to control water content for low-voltage ethylene production from CO2 electrolysis","authors":"Maxwell Goldman, Aditya Prajapati, Nicholas R. Cross, Auston Clemens, An T. Chu, Laura Gutierrez, Michell Marufu, Eric Krall, Victoria Ehlinger, Thomas Moore, Eric B. Duoss, Sarah E. Baker, Christopher Hahn","doi":"10.1016/j.checat.2025.101497","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101497","url":null,"abstract":"Electrochemical CO2 reduction (eCO2R) holds promise for decarbonizing industrial sectors by producing valuable commodities, such as ethylene. Incorporating polymer electrolyte ionomers onto Cu-based eCO2R cathodes is crucial for enhancing eCO2R efficiency. These ionomers control mass transport, surface chemistry, and water uptake at the cathode, enabling selectivity tuning toward desired C2 products. Complexities and interdependence of interfacial properties have led to challenges within the field to define design properties of catalyst layer ionomers that can enhance the performance of Cu-based catalysts. Herein, we present a systematic investigation into ionomer properties and their relationship to electrochemical performance and demonstrate a 14.3% energy efficiency for ethylene selectivity at 200 mA cm−2. Through multiphysics modeling, we elucidated that the role of the water content of the ionomer is to mitigate flooding and control the local water concentration at the catalyst surface. Translating knowledge from this study will stimulate the synthesis of ionomers tailored for eCO2R.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"6 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905966","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

Fluorination propels Fe–N–C fuel cells to new heights 氟化将Fe-N-C燃料电池推向了新的高度

IF 9.4

Chem Catalysis Pub Date : 2025-08-21 DOI: 10.1016/j.checat.2025.101443

Xin Wan, Jianglan Shui

引用次数: 0

Harnessing a versatile monooxygenase GorA to synthesize N-hydroxy compounds 利用多功能单加氧酶GorA合成n -羟基化合物

IF 9.4

Chem Catalysis Pub Date : 2025-08-21 DOI: 10.1016/j.checat.2025.101495

Caroline E. Paul

引用次数: 0

Origin of copper catalyst reconstruction 铜催化剂重构的起源

IF 9.4

Chem Catalysis Pub Date : 2025-08-21 DOI: 10.1016/j.checat.2025.101494

Zhiyuan Zhang, Jongwoo Lim

引用次数: 0

Weak interactions are crucial for better enantioselections 弱相互作用对更好的对映体选择至关重要

IF 9.4

Chem Catalysis Pub Date : 2025-08-21 DOI: 10.1016/j.checat.2025.101496

M. Mar Díaz-Requejo, Pedro J. Pérez

引用次数: 0

Photothermal reforming of polylactic acid plastics into pyruvic acid with 92.8% selectivity at S-scheme Ov-BiVO4/CdS heterostructures S-scheme Ov-BiVO4/CdS异质结构下聚乳酸塑料光热重整制丙酮酸的选择性为92.8%

IF 9.4

Chem Catalysis Pub Date : 2025-08-13 DOI: 10.1016/j.checat.2025.101490

Xinxin Liang, Ying Tang, Yongqian Cui, Qingyun Tian, Qibing Dong, Ximing Li, Feng Yu, Jincai Zhao, Chuanyi Wang

{"title":"Photothermal reforming of polylactic acid plastics into pyruvic acid with 92.8% selectivity at S-scheme Ov-BiVO4/CdS heterostructures","authors":"Xinxin Liang, Ying Tang, Yongqian Cui, Qingyun Tian, Qibing Dong, Ximing Li, Feng Yu, Jincai Zhao, Chuanyi Wang","doi":"10.1016/j.checat.2025.101490","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101490","url":null,"abstract":"Reforming polylactic acid (PLA) into valuable chemicals while producing hydrogen is crucial for a circular economy. However, a significant challenge remains in the limited selectivity of its reformation products. Herein, we report on oxygen vacancy (Ov)-modified S-scheme BiVO4/CdS heterostructures with favorable photothermal effects, aiming to strengthen the Cα−CCOOH bond and activate the α−OH of pretreated PLA for the highly selective production of pyruvic acid (PA). Compared to BiVO4@CdS, Ov-BiVO4/CdS exhibits higher local charge accumulation on Bi sites, which increases the energy barrier of Cα−CCOOH bond cleavage from −0.34 to 0.44 eV and weakens the α−OH bonds in LA simultaneously, thus benefiting the generation of ∗CH3COCOOH intermediates. Moreover, the spontaneous photothermal effect of Ov-BiVO4/CdS induced by Ov promotes the desorption of PA, thereby suppressing its overoxidation. Consequently, the production rate of PA over Ov-BiVO4/CdS reaches 8.92 mmol g−1 h−1 with a selectivity of 92.8%, representing one of the highest selectivity processes reported for plastic reforming.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"746 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826028","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

Artificial-intelligence-enabled catalysis via standardized batch data 通过标准化批量数据实现人工智能催化

IF 9.4

Chem Catalysis Pub Date : 2025-08-13 DOI: 10.1016/j.checat.2025.101491

Jiaolong Meng, Xuefeng Jiang

{"title":"Artificial-intelligence-enabled catalysis via standardized batch data","authors":"Jiaolong Meng, Xuefeng Jiang","doi":"10.1016/j.checat.2025.101491","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101491","url":null,"abstract":"<figure><img alt=\"\" height=\"341\" src=\"https://ars.els-cdn.com/content/image/1-s2.0-S2667109325002295-fx1.jpg\"/><ol><li>Download: Download high-res image (291KB)</li><li>Download: Download full-size image</li></ol></figure><figure><img alt=\"\" height=\"339\" src=\"https://ars.els-cdn.com/content/image/1-s2.0-S2667109325002295-fx2.jpg\"/><ol><li>Download: Download high-res image (389KB)</li><li>Download: Download full-size image</li></ol></figure>Jiaolong Meng received his PhD in organic chemistry from East China Normal University in 2024 and continued his research there as a postdoctoral fellow under the supervision of Prof. Xuefeng Jiang. His research focuses on the application of artificial intelligence (AI) in chemistry and on strategies for plastic degradation. Xuefeng Jiang is a professor at East China Normal University. He earned his PhD in 2008 from the Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, under the supervision of Prof. Shengming Ma. From 2008 to 2011, he was a postdoctoral fellow, supervised by Prof. K.C. Nicolaou, at the Scripps Research Institute. His current research interests include organosulfur chemistry, AI in chemistry, and plastic degradation.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"105 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826031","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

Accessing planar chiral ferrocenes via transient directing group-enabled C–H alkenylation under Pd(II) catalysis 在Pd（II）催化下，通过瞬时定向基团激活的C-H烯化反应获得平面手性二茂铁

IF 9.4

Chem Catalysis Pub Date : 2025-08-13 DOI: 10.1016/j.checat.2025.101485

Fangnuo Zhao, Yanze Li, Zhongkang Dong, Chen-Xu Liu, Quannan Wang, Qing Gu, Yu-Cheng Gu, Chao Zheng, Shu-Li You

{"title":"Accessing planar chiral ferrocenes via transient directing group-enabled C–H alkenylation under Pd(II) catalysis","authors":"Fangnuo Zhao, Yanze Li, Zhongkang Dong, Chen-Xu Liu, Quannan Wang, Qing Gu, Yu-Cheng Gu, Chao Zheng, Shu-Li You","doi":"10.1016/j.checat.2025.101485","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101485","url":null,"abstract":"Pd-catalyzed asymmetric C–H functionalization is a privileged method for the synthesis of planar chiral ferrocenes. Previous examples under this category virtually rely on a preinstalled strong directing group. The transient directing strategy has witnessed considerable success in recent years. However, only limited examples have been reported for the synthesis of planar chiral ferrocenes. Herein, we report an asymmetric C–H alkenylation of ferrocenes with an array of electron-deficient olefins under Pd catalysis with l-tert-leucine as the transient-directing auxiliary. This reaction exhibits a wide substrate scope, and the target planar chiral ferrocenes are prepared in good yields (up to 85%) with exceptional enantioselectivity (up to >99% ee). Comprehensive mechanistic studies suggest that the storage of ring strain in a seven-membered palladacycle after C–H activation is the key to the success of our reaction design. It guarantees the migratory insertion as a kinetically feasible step that occurs in a strain-releasing manner.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"19 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826034","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

Enantioselective polymerization of racemic lactide for stereocomplex poly(lactic acid) 外消旋丙交酯对立体配合物聚乳酸的对映选择性聚合

IF 9.4

Chem Catalysis Pub Date : 2025-08-13 DOI: 10.1016/j.checat.2025.101487

Xiaoyu Xie, Ziyu Huo, Erin R. Crater, Robert B. Moore, Rong Tong

引用次数: 0

Dynamic pulse electrocatalysis for efficient and directed reduction of nitrate to ammonia 动态脉冲电催化高效定向还原硝酸盐为氨

IF 9.4

Chem Catalysis Pub Date : 2025-08-08 DOI: 10.1016/j.checat.2025.101465

Rundong Zhao, Qiuyu Yan, Hao Lin, Lihong Yu, Le Liu, Jingyu Xi

{"title":"Dynamic pulse electrocatalysis for efficient and directed reduction of nitrate to ammonia","authors":"Rundong Zhao, Qiuyu Yan, Hao Lin, Lihong Yu, Le Liu, Jingyu Xi","doi":"10.1016/j.checat.2025.101465","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101465","url":null,"abstract":"The electrochemical nitrate reduction reaction (NO3RR) presents a sustainable pathway to simultaneously address environmental nitrate (NO3−) pollution and decarbonize ammonia (NH3) production. While traditional constant-potential electrocatalysis for NO3RR has been widely studied, it suffers from inherent limitations, including competing hydrogen evolution, intermediate desorption, mass transfer bottlenecks, etc. In response, pulsed electrocatalysis, as an easily operable method, enables the regulation of reaction pathways by periodically varying applied potentials and can effectively overcome the limitations of constant-potential catalysis. However, research on pulsed catalysis in NO3RR remains fragmented, lacking systematic categorization. Consequently, this review provides a comprehensive overview of pulsed NO3RR systems, encompassing fundamental testing methodologies, catalytic mechanisms, device configurations, in situ characterization techniques, and merits of pulsed strategy. Furthermore, the analysis outlines essential criteria for catalyst design to maximize the potential of pulsed strategy and emphasizes the need for enhanced research and refined investigations in existing pulsed NO3RR implementations.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"95 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797549","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