催化作用
电催化剂
甲醇
乙二醇
材料科学
电化学
酒
酒精氧化
无机化学
化学
有机化学
物理化学
电极
作者
Hai Bai,Weifeng Huang,Jiefei Li
标识
DOI:10.1016/j.matlet.2023.134796
摘要
Considering that the co-catalyst which are rich in oxygen vacancy and hydroxyl functional groups have an obvious role in improving the activity and durability of Pt-based electrocatalyst, a novel Pr-doped CeO2·H2O cocatalyst (PrxCey(OH)a) has been prepared through a facile one-step hydrothermal method. The substitution of Pr3+ cation for host Ce4+ cation produces oxygen vacancies due to charge compensation effects. Pt/C-Pr1Ce6(OH)a exhibits an outstanding electrochemical oxidation performance with high peak current density of 2587 mA mg−1, 4116 mA mg−1, 2158 mA mg−1 in methanol, ethylene glycol, and glycerol oxidation reaction, respectively. PrxCey(OH)a provides significant co-catalysis effects by comparing with the alcohol electrooxidation performance of Pt/C, which shows a feasible strategy for the rational design of direct alcohol fuel cells catalysts.
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