期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 43, 页码 14149-14153出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201808964
关键词
aerogels; carbon dioxide; electrocatalysis; ionic liquids; methanol
资金
- National Key Research and Development Program of China [2017YFA0403102]
- National Natural Science Foundation of China [21673248, 21733011, 21533011]
- Chinese Academy of Sciences [QYZDY-SSW-SLH013]
Electrochemical reduction of CO2 to CH3OH is of great interest. Aerogels have fine inorganic superstructure with high porosity and are known to be exceptional materials. Now a Pd-Cu bimetallic aerogel electrocatalyst has been developed for conversion of CO2 into CH3OH. The current density and Faradaic efficiency of CH3OH can be as high as 31.8mAcm(-2) and 80.0% over the Pd83Cu17 aerogel at a very low overpotential (0.24V). The superior performance of the electrocatalyst results from efficient adsorption and stabilization of the CO2 radical anion, high Pd-0/Pd-II and Cu-I+Cu-0/Cu-II ratios, and sufficient Pd/Cu grain boundaries of aerogel nanochains.
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