Carbon-ceramic supported bimetallic Pt-Ni nanoparticles as an electrocatalyst for oxidation of formic acid

被引：63

作者：

Habibi, Biuck ^{[1
]}

Delnavaz, Nasrin ^{[1
]}

机构：

[1] Azarbaijan Univ Tarbiat Moallem, Fac Sci, Dept Chem, Electroanalyt Chem Lab, Tabriz, Iran

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 16期

关键词：

Platinum-nickel nanoparticles; Electrocatalyst; Electrooxidation; Formic acid; Carbon-ceramic; METHANOL FUEL-CELL; GLASSY-CARBON; PLATINUM NANOPARTICLES; ALLOY NANOPARTICLES; LOWER POTENTIALS; ELECTROOXIDATION; CATALYST; ELECTRODE; CROSSOVER; REDUCTION;

D O I：

10.1016/j.ijhydene.2011.05.062

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：

The Pt-Ni nanoparticles supported on carbon-ceramic electrode (CCE) are prepared by an electrodeposited process. The obtained catalyst is characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and cyclic voltammetry. The results show that the Pt-Ni nanoparticles (Flower like), which are uniformly dispersed on carbon ceramic, are 20-50 nm in diameters. The Pt-Ni/CCE catalyst, which has excellent electrocatalytic activity for formic acid (FA) electrooxidation than a comparative Pt/CCE catalyst, shows great potential as less expensive electrocatalyst for FA electrooxidation. On the other hand, the Pt-Ni/CCE catalyst has satisfactory stability and reproducibility when stored in ambient conditions or continues cycling. These results indicate that the system studied in the present work is the most promising system for use in direct formic acid fuel cells. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：9581 / 9590

页数：10

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