Cuprous ions embedded in ceria lattice for selective and stable electrochemical reduction of carbon dioxide to ethylene
Wu, D; Dong, CK; Wu, DY; Fu, JY; Liu, H; Hu, SW; Jiang, Z; Qiao, SZ; Du, XW
2018
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
卷号6期号:20页码:9373-9377
文章类型期刊论文
摘要Electrochemical reduction of carbon dioxide (CO2) shows high potential to remedy greenhouse gas emission and over-dependence on fossil fuels; nevertheless, it remains a big challenge to selectively reduce CO2 to a hydrocarbon fuel with high energy density. Here we report a novel electrocatalyst, ceria doped with cuprous ions, which can produce ethylene selectively and stably; specifically, the faradaic efficiency for ethylene reaches 47.6% at -1.1 V vs. RHE, and the high current density is maintained steadily for several hours. The active sites are experimentally identified as cuprous ions which are stabilized by ceria and responsible for long term durability. Furthermore, theoretical calculations indicate that cuprous ions favor C-C coupling and thus have high selectivity to ethylene. Our work demonstrates that doping an inert substrate with active ions is an effective way to improve the selectivity and stability of catalysis, which promises high yield of hydrocarbon fuels.
关键词Oxide-derived Copper Co2 Reduction Catalysts Electroreduction Oxidation Electrocatalysts Bicarbonate Electrode Surfaces Insights
DOI10.1039/c8ta01677a
收录类别SCI
语种英语
WOS记录号WOS:000433427300004
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28954
专题中科院上海应用物理研究所2011-2018年
作者单位1.Wu, D
2.Dong, CK
3.Wu, DY
4.Fu, JY
5.Liu, H
6.Hu, SW
7.Jiang, Z
8.Qiao, SZ
9.Du, XW
推荐引用方式
GB/T 7714
Wu, D,Dong, CK,Wu, DY,et al. Cuprous ions embedded in ceria lattice for selective and stable electrochemical reduction of carbon dioxide to ethylene[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(20):9373-9377.
APA Wu, D.,Dong, CK.,Wu, DY.,Fu, JY.,Liu, H.,...&Du, XW.(2018).Cuprous ions embedded in ceria lattice for selective and stable electrochemical reduction of carbon dioxide to ethylene.JOURNAL OF MATERIALS CHEMISTRY A,6(20),9373-9377.
MLA Wu, D,et al."Cuprous ions embedded in ceria lattice for selective and stable electrochemical reduction of carbon dioxide to ethylene".JOURNAL OF MATERIALS CHEMISTRY A 6.20(2018):9373-9377.
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