期刊
ACS NANO
卷 16, 期 12, 页码 21266-21274出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c09270
关键词
aerogels; metallene; single-atom doping; ethanol oxidation reaction; electrocatalysis
类别
资金
- National Key R & D Program of China [2021YFC2901100]
- Fundamental Research Funds for the Central Universities [CCNU20TS013, CCNU20QN007]
- Program of Introducing Talents of Discipline to Universities of China (111 program) [B17019]
- Fundamental Research Funds for the Central Universities (Youbo Cultivation Project) [2022YBZZ005]
In this study, a bubbling CO-induced gelation method was developed to construct single-atom W-doped Pd metallene aerogels. The resulting aerogels exhibited outstanding performance and high C1 pathway selectivity for the ethanol oxidation reaction. This research not only provides an effective method for fabricating noble metal aerogels but also offers guidance for the development of high-efficiency electrocatalysts for the ethanol oxidation reaction.
The development of advanced electrocatalysts with satisfactory C1 pathway selectivity for the ethanol oxidation reaction (EOR) is critical. Herein, a bubbling CO-induced gelation method is developed in acetic acid at 50 degrees C to construct single-atom W-doped Pd metallene aerogels (denoted as SA W-Pd MAs) within 1 h. In light of the metallene structural advantages of noble metal aerogels and single-atom W decoration, the resultant SA W-Pd MAs exhibit an outstanding EOR performance with high C1 pathway selectivity. Density functional theory calculations validate that the SA W-Pd MAs greatly improve the formation of the CH3O intermediate and the transformation of poisonous CO species to CO2, thus resulting in high C1 pathway selectivity. Therefore, this work not only offers an effective gelation method to fabricate noble metal aerogels with atomic-scale building blocks but also presents guidance to develop high-efficiency EOR electrocatalysts.
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