Transition metal (Fe, Co, Ni)-doped cuprous oxide nanowire arrays as self-supporting catalysts for electrocatalytic CO2 reduction reaction to ethylene - Details

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Abstract：

The　transition　metal　(Fe,　Co,　Ni)-doped　cuprous　oxide　(Cu2O)　nanowire　arrays　on　Cu　mesh　(CM)　(M-Cu2O@CM,　M　=　Fe,　Co,　Ni)　are　successfully　synthesized　for　the　electrocatalytic　CO2　reduction　reaction　(CO2RR)　to　ethylene　(C2H4)　through　the　simple　calcination　and　impregnation-exchange　methods.　Systematic　characterizations　have　demonstrated　that　the　Ni/Co　doping　in　Cu2O@CM　is　conducive　to　stabilizing　the　Cu+　sites　due　to　the　electron　transfer　from　Cu2O　to　Ni/Co,　while　the　Fe　doping　has　the　opposite　effect.　Consequently,　they　show　the　different　electrocatalytic　performances　of　Ni-Cu2O@CM　＞　Co-Cu2O@CM　＞　Cu2O@CM　＞　Fe-Cu2O@CM　for　CO2RR　to　C2H4　in　an　H-cell.　Among　them,　Ni-Cu2O@CM　exhibits　the　∼2.0-fold　faradaic　efficiency　for　C2H4　(58.2　%　vs.　28.7　%)　and　the　∼2.5-fold　current　density　(−37.6　vs.　−15.0　mA·cm−2)　at　−1.1　V　vs.　RHE,　as　compared　with　Cu2O@CM.　Further　experiments　reveal　that　during　the　electrocatalytic　CO2RR,　the　Ni-Cu2O@CM　can　generate　more　*CO,　which　promotes　the　C–C　coupling　reaction.　The　activity　of　Co-Cu2O@CM　is　lower　than　Ni-Cu2O@CM　because　of　the　strong　adsorption　of　*COOH,　while　the　Fe-Cu2O@CM　even　exhibits　a　lower　activity　than　Cu2O@CM.　This　work　provides　an　insight　into　the　effect　of　transition　metal-doped　Cu2O　array　on　the　electrocatalytic　CO2RR　to　C2H4　products.　©　2024　Elsevier　B.V.

Keyword：

Carbon dioxide Copper oxides Ethylene Iron compounds Nanowires Transition metals

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[ 1 ] [Min, Shihao]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
[ 2 ] [Min, Shihao]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 3 ] [Min, Shihao]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 4 ] [Min, Shihao]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 5 ] [Wang, Zhuoyue]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
[ 6 ] [Wang, Zhuoyue]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 7 ] [Wang, Zhuoyue]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 8 ] [Wang, Zhuoyue]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 9 ] [Xu, Xiao]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 10 ] [Xu, Xiao]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 11 ] [Xu, Xiao]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 12 ] [He, Jiaxin]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
[ 13 ] [He, Jiaxin]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 14 ] [He, Jiaxin]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 15 ] [He, Jiaxin]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 16 ] [Sun, Miao]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 17 ] [Sun, Miao]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 18 ] [Sun, Miao]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 19 ] [Lin, Wenlie]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 20 ] [Lin, Wenlie]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 21 ] [Lin, Wenlie]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China
[ 22 ] [Kang, Longtian]Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
[ 23 ] [Kang, Longtian]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou; 350108, China
[ 24 ] [Kang, Longtian]University Chinese Academy of Science, Fujian College, Fuzhou; 350002, China

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Source ：

Applied Surface Science

ISSN： 0169-4332

Year： 2024

Volume： 663

6 . 3 0 0

JCR@2023

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SCOPUS Cited Count： 7

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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