Pub Date : 2026-10-21DOI: 10.1016/j.jcat.2026.117244
Fujing Nie, Yuan Kong, Si Chen, Xi Zhang, Guangyuan Xu, Yanzhe Ma, Dongyue Liu, Mengxin Wang, Lijin Gan, Yi Duan, Shibo Xi, Huan Yan
{"title":"Breaking the density-stability trade-off of isolated gallium sites for propane dehydrogenation","authors":"Fujing Nie, Yuan Kong, Si Chen, Xi Zhang, Guangyuan Xu, Yanzhe Ma, Dongyue Liu, Mengxin Wang, Lijin Gan, Yi Duan, Shibo Xi, Huan Yan","doi":"10.1016/j.jcat.2026.117244","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117244","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"165 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149233027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-10-18DOI: 10.1016/j.jcat.2026.117241
Boda Yang, Carlos Lizandara-Pueyo, Piyush Ingale, Ivana Jevtovikj, Reni Grauke, Stephan Schunk, Sungmin Kim, Huamin Wang, Johannes A. Lercher
{"title":"Impact of polyvinyl chloride on the hydrogenolysis of low-density polyethylene over supported transition metal catalysts","authors":"Boda Yang, Carlos Lizandara-Pueyo, Piyush Ingale, Ivana Jevtovikj, Reni Grauke, Stephan Schunk, Sungmin Kim, Huamin Wang, Johannes A. Lercher","doi":"10.1016/j.jcat.2026.117241","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117241","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"39 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149232530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fe-based single-atom catalysts (Fe-SACs) for Fenton-like reactions are fundamentally limited by the intrinsic trade-off between catalytic activity and structural stability. Herein, we report a coordination engineering strategy to construct a robust Fe-N4 single-atom catalyst (SiO2@Fe-N-C) and systematically reveal its distinct structure-performance relationship compared with Fe-N4O2 counterparts. The Fe-N4 catalyst achieves nearly complete degradation of 2,4-dichlorophenol within 20 min (k = 0.70 min-1), along with enhanced mineralization (62%) and excellent stability over 10 cycles with negligible Fe leaching. In contrast to the unstable Fe-N4O2 configuration, the symmetric Fe-N4 coordination simultaneously enhances catalytic activity and durability. Mechanistic investigations combined with Density functional theory (DFT) calculations uncover a “strong adsorption-low perturbation” mechanism, where Fe-N4 sites enable efficient reactant adsorption via enhanced orbital hybridization, while minimizing charge transfer (∼0.01 e-) to preserve structural integrity. This unique electronic feature decouples the conventional activity-stability trade-off in Fenton-like catalysis. This work establishes a clear correlation between coordination symmetry and catalytic performance, providing a fundamental design principle for developing highly efficient and durable single-atom catalysts.
{"title":"Activity-stability differences in fenton catalysis: distinct roles of Fe-N4 and Fe-N4O2 sites","authors":"Xiaoyan Wang, Xiaojun Miao, Meiling Cai, Hui Zhu, Luxiang Wang, Liping Yang, Jiao Yin","doi":"10.1016/j.jcat.2026.117237","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117237","url":null,"abstract":"Fe-based single-atom catalysts (Fe-SACs) for Fenton-like reactions are fundamentally limited by the intrinsic trade-off between catalytic activity and structural stability. Herein, we report a coordination engineering strategy to construct a robust Fe-N<ce:inf loc=\"post\">4</ce:inf> single-atom catalyst (SiO<ce:inf loc=\"post\">2</ce:inf>@Fe-N-C) and systematically reveal its distinct structure-performance relationship compared with Fe-N<ce:inf loc=\"post\">4</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> counterparts. The Fe-N<ce:inf loc=\"post\">4</ce:inf> catalyst achieves nearly complete degradation of 2,4-dichlorophenol within 20 min (k = 0.70 min<ce:sup loc=\"post\">-1</ce:sup>), along with enhanced mineralization (62%) and excellent stability over 10 cycles with negligible Fe leaching. In contrast to the unstable Fe-N<ce:inf loc=\"post\">4</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> configuration, the symmetric Fe-N<ce:inf loc=\"post\">4</ce:inf> coordination simultaneously enhances catalytic activity and durability. Mechanistic investigations combined with Density functional theory (DFT) calculations uncover a “strong adsorption-low perturbation” mechanism, where Fe-N<ce:inf loc=\"post\">4</ce:inf> sites enable efficient reactant adsorption via enhanced orbital hybridization, while minimizing charge transfer (∼0.01 e<ce:sup loc=\"post\">-</ce:sup>) to preserve structural integrity. This unique electronic feature decouples the conventional activity-stability trade-off in Fenton-like catalysis. This work establishes a clear correlation between coordination symmetry and catalytic performance, providing a fundamental design principle for developing highly efficient and durable single-atom catalysts.","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"23 1","pages":"117237"},"PeriodicalIF":7.3,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149236220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-10-01DOI: 10.1016/j.jcat.2026.117230
Nimesh R. Chauhan,Priyanka V. Patat,Sakshi,Angshuman Roy Choudhury,Komal M. Vyas
{"title":"Enabling bimetallic cooperativity in tetrameric Ru(II) complexes for efficient and selective aerobic oxidative amidation of primary amines","authors":"Nimesh R. Chauhan,Priyanka V. Patat,Sakshi,Angshuman Roy Choudhury,Komal M. Vyas","doi":"10.1016/j.jcat.2026.117230","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117230","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"29 1","pages":"117230"},"PeriodicalIF":7.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-10-01DOI: 10.1016/j.jcat.2026.117211
Ahmet Safa Aydogdu,Yasin Kalay,Büşra Sekizkardeş,Ugur Unal,Özge D. Bozkurt,Adam S. Hoffman,Jiyun Hong,Jorge E. Perez-Aguilar,Simon R. Bare,Samira F. Kurtoğlu-Öztulum,Alper Uzun
{"title":"From single atoms to nanoparticles: growing rhodium nanoparticles on MgO toward stable COx-free hydrogen production from ammonia","authors":"Ahmet Safa Aydogdu,Yasin Kalay,Büşra Sekizkardeş,Ugur Unal,Özge D. Bozkurt,Adam S. Hoffman,Jiyun Hong,Jorge E. Perez-Aguilar,Simon R. Bare,Samira F. Kurtoğlu-Öztulum,Alper Uzun","doi":"10.1016/j.jcat.2026.117211","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117211","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"1 1","pages":"117211"},"PeriodicalIF":7.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149092081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-10-01DOI: 10.1016/j.jcat.2026.117229
Konrad Stęsik,Kinga Stefanowska,Jędrzej Walkowiak,Adrian Franczyk
{"title":"Structure–reactivity relationships in [Cp*Ru(MeCN)3][PF6]-catalyzed anti- and syn-selective hydrosilylation of internal alkynes and 1,3-diynes","authors":"Konrad Stęsik,Kinga Stefanowska,Jędrzej Walkowiak,Adrian Franczyk","doi":"10.1016/j.jcat.2026.117229","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.117229","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"9 1","pages":"117229"},"PeriodicalIF":7.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149092080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-04-01Epub Date: 2026-02-09DOI: 10.1016/j.jcat.2026.116756
Changzhi Han , Tianci Chen , Shibo Lv , Jingwen Pan , Sihui Xiang , Jia-Xing Jiang
Anthraquinone (AQ) based organic conjugated polymers are promising photocatalysts for H2O2 photosynthesis from O2 and H2O, since the AQ unit with strong electron withdrawing ability can not only promote the charge separation but also act as redox active center to generate H2O2 via oxygen reduction reaction (ORR). Herein, three novel donor–acceptor type organic polymers are reported to elucidate the influence of simple donor functionalization on charge dynamics and ORR activity. Compared to biphenyl donor without functionalized group, acetylene functionalized diphenylacetylene donor and diacetylene functionalized 1,4-diphenylbutadiyne donor show reduced twisted angles between adjacent benzene rings and increased coplanarity of polymer chains, which promotes the charge transfer and separation along the polymer chains. Besides, the presence of diacetylene group in donor extends the π conjugation and broadens the light absorption range of DPB-AQ. Benefiting from the donor–acceptor structure, broad absorption range of visible light, upgraded charge transfer and separation ability, DPB-AQ exhibits a higher photocatalytic H2O2 yield of 7.8 mmol h−1 g−1 than BPH-AQ (1.0 mmol h−1 g−1) and DPA-AQ (3.8 mmol h−1 g−1) in pure water without additives. This work highlights the critical role of simple donor functionalization in polymers for H2O2 photosynthesis from H2O and O2.
{"title":"Simple donor functionalization in D-A type conjugated polymers for improved photocatalytic H2O2 production activity under visible light","authors":"Changzhi Han , Tianci Chen , Shibo Lv , Jingwen Pan , Sihui Xiang , Jia-Xing Jiang","doi":"10.1016/j.jcat.2026.116756","DOIUrl":"10.1016/j.jcat.2026.116756","url":null,"abstract":"<div><div>Anthraquinone (AQ) based organic conjugated polymers are promising photocatalysts for H<sub>2</sub>O<sub>2</sub> photosynthesis from O<sub>2</sub> and H<sub>2</sub>O, since the AQ unit with strong electron withdrawing ability can not only promote the charge separation but also act as redox active center to generate H<sub>2</sub>O<sub>2</sub> via oxygen reduction reaction (ORR). Herein, three novel donor–acceptor type organic polymers are reported to elucidate the influence of simple donor functionalization on charge dynamics and ORR activity. Compared to biphenyl donor without functionalized group, acetylene functionalized diphenylacetylene donor and diacetylene functionalized 1,4-diphenylbutadiyne donor show reduced twisted angles between adjacent benzene rings and increased coplanarity of polymer chains, which promotes the charge transfer and separation along the polymer chains. Besides, the presence of diacetylene group in donor extends the π conjugation and broadens the light absorption range of DPB-AQ. Benefiting from the donor–acceptor structure, broad absorption range of visible light, upgraded charge transfer and separation ability, DPB-AQ exhibits a higher photocatalytic H<sub>2</sub>O<sub>2</sub> yield of 7.8 mmol h<sup>−1</sup> g<sup>−1</sup> than BPH-AQ (1.0 mmol h<sup>−1</sup> g<sup>−1</sup>) and DPA-AQ (3.8 mmol h<sup>−1</sup> g<sup>−1</sup>) in pure water without additives. This work highlights the critical role of simple donor functionalization in polymers for H<sub>2</sub>O<sub>2</sub> photosynthesis from H<sub>2</sub>O and O<sub>2</sub>.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"456 ","pages":"Article 116756"},"PeriodicalIF":6.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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