1. CoP/RGO-Pd Hybrids with Heterointerfaces as Highly Active Catalysts for Ethanol Electrooxidation
- Author
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Yicong Xiao, Cheng-Meng Chen, Yue-Wen Mu, Gang-Ping Wu, Liancheng Wang, Baoliang Lv, Mengchao Wang, Huixiang Wang, and Ruimin Ding
- Subjects
Ethanol ,Materials science ,Cobalt phosphide ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Direct-ethanol fuel cell ,01 natural sciences ,Combinatorial chemistry ,0104 chemical sciences ,Catalysis ,chemistry.chemical_compound ,chemistry ,General Materials Science ,0210 nano-technology ,Ethanol oxidation reaction ,Bond cleavage - Abstract
The ethanol oxidation reaction is of critical importance to the commercial viability of direct ethanol fuel cell technology. However, owing to the poor C-C bond cleavage capability, almost all ethanol oxidation is incomplete and suffers from low selectivity toward the C1 pathway. Herein, under the support of theoretical calculations that the heterointerfaces between CoP and Pd can reduce the energy barrier of C-C bond cleavage, rich heterointerfaces in CoP/RGO-Pd hybrids were designed to improve ethanol electrooxidation performance through enhancing the selectivity toward the C1 pathway. The experimental results show that the faradaic efficiency of the C1 pathway of CoP/RGO-Pd hybrids is as high as 27.6%, surpassing most reported catalysts in the literature. As a result of this enhancement, CoP/RGO-Pd10 exhibits mass activity as high as 4597 mA·mg
- Published
- 2020