The Construction of p/n-Cu2O Heterojunction Catalysts for Efficient CO2 Photoelectric Reduction - Details

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Abstract：

Cu2O　is　a　p-type　direct　bandgap　semiconductor　with　a　band　gap　of　2~2.2　eV,　which　has　excellent　visible　light　absorption　and　utilization.　However,　slow　charge　transfer　and　poor　stability　hinder　its　practical　application.　In　this　paper,　a　facile　electrodeposition　approach　successfully　synthesized　the　heterostructure　of　p-Cu2O　and　n-Cu2O.　The　protective　layer　of　n-Cu2O　on　the　surface　of　p-Cu2O　nanoparticles　forms　a　p/n　heterojunction.　Due　to　the　p/n　heterojunction,　the　PEC　performance　of　p/n-Cu2O　is　enhanced　significantly.　The　charge　separation　efficiency　of　photogenerated　electron/hole　pairs　in　p/n-Cu2O　is　greatly　improved.　Therefore,　p/n-Cu2O　shows　superior　photoelectrochemical　(PEC)　CO2　reduction　reaction　(CO2RR)　efficiency　when　used　as　a　photocathode.　©　2023　by　the　authors.

Keyword：

carbon dioxide reduction reaction Cu2O electrodeposition p/n heterojunction

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[ 1 ] [Zhou Q.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Zhou Q.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 3 ] [Zhou Q.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 4 ] [Chen Y.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Chen Y.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 6 ] [Chen Y.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 7 ] [Chen Y.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
[ 8 ] [Chen Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350108, China
[ 9 ] [Shi H.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 10 ] [Shi H.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 11 ] [Shi H.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350108, China
[ 12 ] [Chen R.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 13 ] [Chen R.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 14 ] [Ji M.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 15 ] [Ji M.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 16 ] [Li K.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 17 ] [Li K.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 18 ] [Wang H.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 19 ] [Wang H.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 20 ] [Wang H.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350108, China
[ 21 ] [Jiang X.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 22 ] [Jiang X.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 23 ] [Lu C.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 24 ] [Lu C.]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 25 ] [Lu C.]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, 361021, China
[ 26 ] [Lu C.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
[ 27 ] [Lu C.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350108, China

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Catalysts

ISSN： 2073-4344

Year： 2023

Issue： 5

Volume： 13

3 . 8

JCR@2023

3 . 8 0 0

JCR@2023

ESI HC Threshold：39

JCR Journal Grade：2

CAS Journal Grade：4

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WoS CC Cited Count：

SCOPUS Cited Count： 3

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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