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| 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
 |
| ISSN | 2050-7488 |
| 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 |
| DOI | 10.1039/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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