典型文献
Electronic Coupling of Single Atom and FePS3 Boosts Water Electrolysis
文献摘要:
Engineering the electronic structure of surface active sites at the atomic level can be an efficient way to modulate the reactivity of catalysts.Herein,we report the rational tuning of surface electronic structure of FePS3 nanosheets(NSs)by anchoring atomically dispersed metal atom.Theoretical calculations predict that the strong electronic coupling effect in single-atom Ni-FePS3 facilitates electron aggregation from Fe atom to the nearby Ni-S bond and enhances the electron-transfer of Ni and S sites,which balances the oxygen species adsorption capacity,reinforces water adsorption and dissociation process to accelerate corresponding oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).The optimal Ni-FePS3 NSs/C exhibits outstanding electrochemical water-splitting activities,delivering an overpotential of 287 mV at the current density of 10 mA cm-2 and a Tafel slope of 41.1 mV dec-1 for OER;as well as an overpotential decrease of 219 mV for HER compared with pure FePS3 NSs/C.The concept of electronic coupling interaction between the substrate and implanted single active species offers an additional method for catalyst design and beyond.
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作者姓名:
Chongyang Tang;Dong He;Nan Zhang;Xianyin Song;Shuangfeng Jia;Zunjian Ke;Jiangchao Liu;Jianbo Wang;Changzhong Jiang;Ziyu Wang;Xiaoqing Huang;Xiangheng Xiao
作者机构:
School of Physics and Technology,Wuhan University,Wuhan 430072,China;The Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China;Institute of Technological Sciences,Wuhan University,Wuhan 430072,China;State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China
文献出处:
引用格式:
[1]Chongyang Tang;Dong He;Nan Zhang;Xianyin Song;Shuangfeng Jia;Zunjian Ke;Jiangchao Liu;Jianbo Wang;Changzhong Jiang;Ziyu Wang;Xiaoqing Huang;Xiangheng Xiao-.Electronic Coupling of Single Atom and FePS3 Boosts Water Electrolysis)[J].能源与环境材料(英文),2022(03):899-905
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0.593987
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