Enhanced electrocatalytic performance of palladium nanoparticles with high energy surfaces in formic acid oxidation

被引：60

作者：

Klinkova, Anna ^{[1
]}

De Luna, Phil ^{[2
]}

Sargent, Edward H. ^{[2
]}

Kumacheva, Eugenia ^{[1
]}

Cherepanov, Pavel V. ^{[3
]}

机构：

[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

[2] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3E4, Canada

[3] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2017年 / 5卷 / 23期

基金：

加拿大自然科学与工程研究理事会;

关键词：

NANOCRYSTALS; REDUCTION; STABILITY; FACETS;

D O I：

10.1039/c7ta00902j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Direct formic acid fuel cells hold great potential for utilizing formic acid as an energy source via formic acid oxidation (FAO). We report a new anodic material composed of branched Pd nanoparticles (BNPs) with enhanced performance for the electrocatalytic FAO reaction. The results of computational studies indicate that the surface morphology of the nanoparticles favours the binding of FAO intermediates while allowing for field-induced reagent concentration (FIRC) at sharp tips leading to amplified catalytic activity and improved stability. Our findings highlight the importance of morphological control of high-energy surfaces for effective fuel cell anodes.

引用

页码：11582 / 11585

页数：4

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