无机材料学报2018，Vol.33Issue(1)：81-86,6.DOI:10.15541/jim20170142
Pdn-Fe纳米合金作为Mg-H2O2半燃料电池阴极研究
Cathode Performance of Mg-H2O2 Semi-fuel Cell with Pdn-Fe Alloy as Cathode
摘要
Abstract
Carbon-supported palladium-iron composite electrocatalysts with different Pd to Fe atom ratios (2 :1, 4 :1, 8 :1) were prepared by a chemical reduction method. The morphology and surface state of the Pdn-Fe/C and Pd/C electrocatalysts were characterized by X-ray diffractionanalysis (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicated that Fe was added to the Pd/C catalyst and reacted with Pd to form Pdn-Fe alloy, with slightly varied particle size. And the Pdn-Fe catalyst particles were homogeneously distributed on the surface of the C carrier with the average particle size between 2-3 nm. The addi-tion of Fe influenced crystal lattice structure of Pd/C catalysts. Electrochemical (CV, LSV, CA) data showed that the eletrocatalytic activity of the Pd4-Fe/C electrocatalyst for hydrogen peroxide electroreduction was much higher than that of Pd/C. The current density of Pd/C electrode for hydrogen peroxide electroreduction reaction was 17.71 mA/cm2 whenE = 0.2 V and the current density of Pd4-Fe/C electrode was up to 19.42 mA/cm2. The Mg-H2O2 semi-fuel cell performance text showed that both the open circuit potential of the two fuel cells were about 1.8 V, of which the power density of Mg-H2O2semi-fuel cell using Pdn-Fe/C as the cathode was higher 41 mW/cm2 than that using Pd/C as cathode.关键词
Fe/Pd/C/H2O2电还原/Mg-H2O2半燃料电池Key words
Fe/Pd/C/Hydrogen peroxide electroreduction/Mg-H2O2semi-fuel cell分类
化学化工引用本文复制引用
孙丽美,石乐乐,张帅帅,张益佳,李增辉,何乌日嘎木拉..Pdn-Fe纳米合金作为Mg-H2O2半燃料电池阴极研究[J].无机材料学报,2018,33(1):81-86,6.基金项目
国家自然科学基金(21003070, 21463017) （21003070, 21463017）
内蒙古自然科学基金(2012MS0208) National Natural Science Foundation of China (21003070,21463017) （2012MS0208）
Natural Science Foundation ofInner Mongo-lia(2012MS0208) （2012MS0208）
