乙醇和乙二醇在立方、八面体和菱形十二面体钯纳米晶体上的电催化氧化

Electrocatalytic oxidation of ethanol and ethylene glycol on cubic, octahedral and rhombic dodecahedral palladium nanocrystals.

作者信息

Ma Xian-Yin, Chen Yafeng, Wang Han, Li Qiao-Xia, Lin Wen-Feng, Cai Wen-Bin

机构信息

Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.

出版信息

Chem Commun (Camb). 2018 Mar 6;54(20):2562-2565. doi: 10.1039/c7cc08793d.

DOI:10.1039/c7cc08793d

PMID:29465719

Abstract

Cubic, octahedral and rhombic dodecahedral Pd nanocrystals were synthesized and examined as nanocatalysts for electro-oxidation of ethanol and ethylene glycol. Combined electrochemical measurements and density functional theory calculations reveal that nanofacet-dependent affinity and reactivity of OH and CO are closely linked to the C2 alcohol oxidation activities, with the highest reactivity found on the Pd nanocubes bounded by {100} facets.

摘要

合成了立方、八面体和菱形十二面体的钯纳米晶体，并将其作为乙醇和乙二醇电氧化的纳米催化剂进行了研究。电化学测量和密度泛函理论计算相结合的结果表明，OH和CO的纳米面依赖性亲和力和反应活性与C2醇氧化活性密切相关，在由{100}面界定的钯纳米立方体上发现了最高的反应活性。