Pub Date : 2026-03-21DOI: 10.1016/j.jcat.2026.116831
Cristina I.Q. Silva, Polina Lavrik, Sarah Komaty, Mohamed Nejib Hedhili, Sudheesh Kumar Veeranmaril, Javier Ruiz-Martínez
{"title":"Nanostructure modification of a MnTiOx catalyst with Fe and Ce doping: enhancing activity and selectivity in the reduction of NOx with NH3","authors":"Cristina I.Q. Silva, Polina Lavrik, Sarah Komaty, Mohamed Nejib Hedhili, Sudheesh Kumar Veeranmaril, Javier Ruiz-Martínez","doi":"10.1016/j.jcat.2026.116831","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116831","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"92 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495593","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 : 2026-03-21DOI: 10.1016/j.jcat.2026.116844
Tiehuai Li, Hongming Xu, Ernest P. Delmo, Juhee Jang, Fei Sun, Cunpu Li, Zidong Wei, Minhua Shao
{"title":"Boosting production of C2+ products in a neutral electrolyte by Cu2O nano-networks in the CO2 electrochemical reduction","authors":"Tiehuai Li, Hongming Xu, Ernest P. Delmo, Juhee Jang, Fei Sun, Cunpu Li, Zidong Wei, Minhua Shao","doi":"10.1016/j.jcat.2026.116844","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116844","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"16 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495588","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 : 2026-03-21DOI: 10.1016/j.jcat.2026.116835
Shixin Zheng, Qian Wang, Yuehua Liu, Weimin Zhang, Jie Chen, Bin Wang
{"title":"Bioinspired oxidative N-dealkylation using water as an oxygen source: a direct route to ω-amino acids from aliphatic N-heterocycles","authors":"Shixin Zheng, Qian Wang, Yuehua Liu, Weimin Zhang, Jie Chen, Bin Wang","doi":"10.1016/j.jcat.2026.116835","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116835","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"13 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495590","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 : 2026-03-21DOI: 10.1016/j.jcat.2026.116834
Jakub Robaszkiewicz, Piotr Pawluć, Maciej Zaranek
{"title":"Phenoxyiminato Cobalt(II) complexes in hydroboration of terminal and internal alkenes","authors":"Jakub Robaszkiewicz, Piotr Pawluć, Maciej Zaranek","doi":"10.1016/j.jcat.2026.116834","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116834","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"32 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147496410","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 : 2026-03-21DOI: 10.1016/j.jcat.2026.116840
Xinyi Wu, Bingyang Wang, Li Deng, Xiangyun Meng, Chunian Xia, Qiangsheng Sun, Wei Sun
{"title":"Bifunctional nickel(II)-N4 complexes for synthesis of carbonates from CO2 and epoxides","authors":"Xinyi Wu, Bingyang Wang, Li Deng, Xiangyun Meng, Chunian Xia, Qiangsheng Sun, Wei Sun","doi":"10.1016/j.jcat.2026.116840","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116840","url":null,"abstract":"","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"12 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495592","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}
Achieving highly selective CO synthesis at near-ampere current densities (>500 mA cm−2) is pivotal for the industrialization of the electrochemical CO2 reduction reaction (ECO2RR). However, the intrinsic low solubility of CO2 and sluggish mass transfer kinetics fail to sustain rapid CO generation, which hinders the attainment of high current densities and renders traditional active-site regulation strategies ineffective. Thus, enhancing local CO2 concentration and optimizing mass transfer has emerged as an urgent prerequisite for developing high-performance ECO2RR catalysts. To address this unmet need, we rationally designed a novel catalyst by immobilizing molecularly dispersed cobalt phthalocyanine (CoPc) onto hollow carbon spheres with tailored porous architectures. The confinement effect of the hollow porous structure boosts local concentrations of CO2 and reaction intermediates, while structural engineering of pore parameters optimizes mass transfer efficiency and balances the density of active sites. Molecular dynamics simulations reveal that enlarging pore diameter and shortening pore length modulate the flow rate and distribution of CO2 and electrolyte, accelerating reactant transport to active sites and promoting rapid product desorption, thereby facilitating mass transfer. Ultimately, these structural optimizations enable a CO Faradaic efficiency exceeding 92% at a near-ampere-level current densities of 800 mA cm−2, and a turnover frequency as high as 86 s−1, along with robust performance over a wide current density range of 100–800 mA cm−2, outperforming state-of-the-art ECO2RR catalysts. This work provides a feasible mass transfer regulation strategy, offering new insights for improving ECO2RR current density and product selectivity, and laying a foundation for the industrial application of ECO2RR
在近安培电流密度（>500 mA cm−2）下实现高选择性CO合成对于电化学CO2还原反应（ECO2RR）的工业化至关重要。然而，CO2固有的低溶解度和缓慢的传质动力学无法维持快速的CO生成，这阻碍了高电流密度的实现，并使传统的活性位点调节策略失效。因此，提高局部CO2浓度和优化传质成为开发高性能ECO2RR催化剂的迫切前提。为了解决这一未满足的需求，我们通过将分子分散的酞菁钴（CoPc）固定在具有定制多孔结构的空心碳球上，合理设计了一种新型催化剂。空心多孔结构的约束效应提高了CO2和反应中间体的局部浓度，而孔参数的结构工程优化了传质效率，平衡了活性位点的密度。分子动力学模拟表明，增大孔径和缩短孔径可以调节CO2和电解质的流速和分布，加速反应物向活性位点的转移，促进产物的快速脱附，从而促进传质。最终，这些结构优化使CO的法拉第效率在800 mA cm−2的近安培电流密度下超过92%，周转频率高达86 s−1，并且在100-800 mA cm−2的宽电流密度范围内具有稳健的性能，优于最先进的ECO2RR催化剂。本工作提供了可行的传质调控策略，为提高ECO2RR电流密度和产品选择性提供了新的见解，为ECO2RR的工业应用奠定了基础
{"title":"Mass transfer regulation via porous structure engineering of molecular catalysts for enhanced electrochemical CO2 reduction","authors":"Xinyi Yang, Yong Zhang, Yuxuan Wang, Yanyun Kang, Yiran Guo, Jianing Xu, Nianwen Song, Xinghua Zhang, Zunming Lu, Hong Dong, Feng Lu, Weihua Wang, Hui Liu, Huui Liu, Yahui Cheng","doi":"10.1016/j.jcat.2026.116829","DOIUrl":"https://doi.org/10.1016/j.jcat.2026.116829","url":null,"abstract":"Achieving highly selective CO synthesis at near-ampere current densities (>500 mA cm<sup>−2</sup>) is pivotal for the industrialization of the electrochemical CO<sub>2</sub> reduction reaction (ECO<sub>2</sub>RR). However, the intrinsic low solubility of CO<sub>2</sub> and sluggish mass transfer kinetics fail to sustain rapid CO generation, which hinders the attainment of high current densities and renders traditional active-site regulation strategies ineffective. Thus, enhancing local CO<sub>2</sub> concentration and optimizing mass transfer has emerged as an urgent prerequisite for developing high-performance ECO<sub>2</sub>RR catalysts. To address this unmet need, we rationally designed a novel catalyst by immobilizing molecularly dispersed cobalt phthalocyanine (CoPc) onto hollow carbon spheres with tailored porous architectures. The confinement effect of the hollow porous structure boosts local concentrations of CO<sub>2</sub> and reaction intermediates, while structural engineering of pore parameters optimizes mass transfer efficiency and balances the density of active sites. Molecular dynamics simulations reveal that enlarging pore diameter and shortening pore length modulate the flow rate and distribution of CO<sub>2</sub> and electrolyte, accelerating reactant transport to active sites and promoting rapid product desorption, thereby facilitating mass transfer. Ultimately, these structural optimizations enable a CO Faradaic efficiency exceeding 92% at a near-ampere-level current densities of 800 mA cm<sup>−2</sup>, and a turnover frequency as high as 86 s<sup>−1</sup>, along with robust performance over a wide current density range of 100–800 mA cm<sup>−2</sup>, outperforming state-of-the-art ECO<sub>2</sub>RR catalysts. This work provides a feasible mass transfer regulation strategy, offering new insights for improving ECO<sub>2</sub>RR current density and product selectivity, and laying a foundation for the industrial application of ECO<sub>2</sub>RR","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"1 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147492551","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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