中山大学学报(自然科学版)2007，Vol.46Issue(z1)：58-60,3.
PdCo/C氧还原催化剂及其抗甲醇性能
High Methanol Tolerance of PdCo/C Catalysts for Oxygen Reduction
摘要
Abstract
A PdCo/C catalyst was prepared by an organic colloid method using citrate as complexing agent, ethylene glycol (EG) as reducing agent and solvent. And the nanocomposition was characterized by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX). XRD patterns showed Pd particles had a face-centered cubic crystal structure and small particle size. It was found that the Pd-Pd distance decreased by the addition of Co, indicating the formation of Pd-Co alloy. The electrocatalytic activities were evaluated by oxygen reduction, which was executed with cyclic voltammetric method with a rotating disk electrode system. The Pd-Co/C catalysts showed higher catalytic activities than Pd/C catalysts and, better methanol tolerance than Pt/C (Johnson-Matthey) for the oxygen reduction. The results implied that the Pd-Co/C catalyst might be a good potential cathodic catalyst for direct methanol membrane fuel cell (DMFC).关键词
电催化剂/氧还原反应/Pd-Co/C/直接甲醇燃料电池Key words
electrocatalysts/Pd-Co/C/oxygen reduction reaction/direct methanol fuel cell分类
化学化工引用本文复制引用
王荣方,刘军民,廖世军..PdCo/C氧还原催化剂及其抗甲醇性能[J].中山大学学报(自然科学版),2007,46(z1):58-60,3.基金项目
国家自然科学基金资助项目(20476034,20673040) The State Natural Science Foundation of China for the financial support( Project No 20476034) （20476034,20673040）
