Three-dimensional reconstruction of porous CeO2 single crystal for effective electrolysis of carbon dioxide - Details

author：

Ma, J. (Ma, J..) ^[1] | Miao, M. (Miao, M..) ^[2] | Ye, L. (Ye, L..) ^[3] | Xie, K. (Xie, K..) ^[4]

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Abstract：

In　the　quest　for　long-lasting　energy　alternatives,　solid　oxide　electrolysers　have　become　a　crucial　technology　in　facilitating　the　transformation　of　CO2　toward　fuels　and　valuable　chemicals.　This　study　proposes　a　unique　method　for　the　catalytic　reduction　of　carbon　dioxide　at　the　cathode　using　porous　CeO2　single-crystal　electrodes　in　a　solid　oxide　electrolyser,　utilizing　temperatures　from　an　industrial　waste　heat　stream.　The　fluxes　and　chemical　states　of　oxygen-containing　species　evolved　from　the　cathode　were　identified　and　designed,　and　the　catalytic　process　of　CO2　reduction　to　CO　was　effectively　regulated　by　the　oxygen-containing　species　(lattice　oxygen,　oxygen　vacancies　and　adsorbed　oxygen).　The　results　show　that　the　CO　yield　can　reach　6.05　mL　min−1　cm−1　with　porous　(111)　CeO2　single　crystal　as　the　cathode　at　850　°C　and　1.8　V.　The　solid　oxide　electrolyser　exhibits　remarkable　stability　even　after　100　h　of　continuous　operation.　©　2024　Elsevier　B.V.

Keyword：

Active oxygen species CO2 electrolysis In situ spectrum Porous single crystal Solid oxide electrolyser

Community：

[ 1 ] [Ma J.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
[ 2 ] [Ma J.]Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 3 ] [Ma J.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
[ 4 ] [Ma J.]Fujian College, University of Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 5 ] [Miao M.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
[ 6 ] [Miao M.]Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 7 ] [Miao M.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
[ 8 ] [Miao M.]Fujian College, University of Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 9 ] [Ye L.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
[ 10 ] [Ye L.]Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 11 ] [Ye L.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
[ 12 ] [Ye L.]Fujian College, University of Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 13 ] [Xie K.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
[ 14 ] [Xie K.]Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 15 ] [Xie K.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
[ 16 ] [Xie K.]Fujian College, University of Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
[ 17 ] [Xie K.]School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China

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Source ：

Journal of Power Sources

ISSN： 0378-7753

Year： 2024

Volume： 615

8 . 1 0 0

JCR@2023

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