Formic acid-reduced ultrasmall Pd nanocrystals on graphene to provide superior electocatalytic activity and stability toward formic acid oxidation

被引：137

作者：

Zhang, Lian Ying ^{[1
,2
,3
]}

Zhao, Zhi Liang ^{[1
,2
,3
]}

Li, Chang Ming ^{[1
,2
,3
]}

机构：

[1] Southwest Univ, Fac Mat & Energy, Chongqing 400715, Peoples R China

[2] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China

[3] Chongqing Key Lab Adv Mat & Technol Clean Energie, Chongqing 400715, Peoples R China

来源：

NANO ENERGY | 2015年 / 11卷

关键词：

Formic acid; Palladium; Formic acid oxidation; Electrocatalyst; Fuel cells; OXYGEN REDUCTION REACTIONS; LITHIUM-ION BATTERIES; DNA-DIRECTED GROWTH; CARBON NANOTUBES; FUEL-CELLS; CATALYTIC-ACTIVITY; ELECTROOXIDATION; NANOPARTICLES; PERFORMANCE; COMPOSITE;

D O I：

10.1016/j.nanoen.2014.10.008

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：

For the first time, herein formic acid is used to reduce precursor for uniformly distributed ultrasmall Pd nanocrystals on graphene as an electrocatalyst towards formic acid oxidation, demonstrating more negative half-wave potential, much higher catalytic current density, lower charge-transfer resistance and better stability than that of the commercial Pd/C catalyst. Except the contribution of the ultrasmall Pd nanocrystals and graphene to the better catalytic performance than the commercial one, we argue that it could be also attributed to the Pd nanoparticles formed by reduction of formic acid to naturally possess strong affinity for strong absorption towards its oxidation for fast electrooxidation process. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：71 / 77

页数：7

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