Surfactant-free Pd-Fe nanoparticles supported on reduced graphene oxide as nanocatalyst for formic acid oxidation

被引：32
|
作者：
Feng, Anni [1 ]
Bai, Jie [1 ]
Shao, Wenyao [1 ]
Hong, Wenjing [1 ]
Tian, Zhong-qun [1 ]
Xiao, Zongyuan [1 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Fujian, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 22期
基金：
中国国家自然科学基金;
关键词：
Fuel cells; Reduced graphene oxide; Palladium; Bimetallic Pd-Fe NPs; Formic acid oxidation; Electrocatalysis; OXYGEN REDUCTION REACTION; CORE-SHELL NANOPARTICLES; MILD-STEEL; FUEL-CELL; BIMETALLIC NANOPARTICLES; ELECTROCHEMICAL-BEHAVIOR; STRUCTURAL EVOLUTION; CORROSION PROTECTION; ELECTRONIC-STRUCTURE; GRAPHITE OXIDE;
D O I：
10.1016/j.ijhydene.2017.04.278
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：
Herein, a novel surfactant-free nanocatalyst of Pd-Fe bimetallic nanoparticles (NPs) supported on the reduced graphene oxide (Pd-Fe/RGO) were synthesized using a two-step reduction in aqueous phase. Electrochemical studies demonstrate that the nanocatalyst exhibits superior catalytic activity towards the formic acid oxidation with high stability due to the synergic effect of Pd-Fe and RGO. The optimized Pd-Fe/RGO (Pd:Fe = 1:5) nano catalyst possess an specific activity of 2.72 mA cm(-2) and an mass activity of 1.0 A mg((pd))(-1), which are significantly higher than those of Pd/RGO and commercial Pd/C catalysts. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：15196 / 15202
页数：7
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