期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 40, 页码 14100-14103出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201905318
关键词
CO2 reduction; electrocatalysis; nanocomposites
资金
- National Natural Science Foundation of China [21834004] Funding Source: Medline
- the American Chemical Society Petroleum Research Fund [57114-ND5] Funding Source: Medline
- the National Science Foundation [CHE-1240020] Funding Source: Medline
- program B for Outstanding PhD candidate of Nanjing University [201801B024, 201801B025] Funding Source: Medline
- International Cooperation Foundation from Ministry of Science and Technology of China [2016YFE0130100] Funding Source: Medline
We report a new strategy to prepare a composite catalyst for highly efficient electrochemical CO2 reduction reaction (CO2RR). The composite catalyst is made by anchoring Au nanoparticles on Cu nanowires via 4,4 '-bipyridine (bipy). The Au-bipy-Cu composite catalyzes the CO2RR in 0.1 m KHCO3 with a total Faradaic efficiency (FE) reaching 90.6 % at -0.9 V to provide C-products, among which CH3CHO (25 % FE) dominates the liquid product (HCOO-, CH3CHO, and CH3COO-) distribution (75 %). The enhanced CO2RR catalysis demonstrated by Au-bipy-Cu originates from its synergistic Au (CO2 to CO) and Cu (CO to C-products) catalysis which is further promoted by bipy. The Au-bipy-Cu composite represents a new catalyst system for effective CO2RR conversion to C-products.
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