电化学2012，Vol.18Issue(6)：515-520,6.
Pd/Ni异结构纳米催化剂的制备及其对甲酸氧化的电催化
Electrocatalytic Oxidation of Formic Acid on Pd/Ni Heterostructured Catalyst
摘要
Abstract
A Pd/Ni bimetallic nanostructured electrocatalyst was fabricated via a two-step reduction route.Owing to an epitaxial growth of Pd atoms on the surface of Ni nanoparticles,heterostructured Pd/Ni nanocomposites were formed and verified by high resolution transmission electron microscopy combined with energy-dispersion X-ray spectroscopy.X-ray diffraction confirmed that the as-prepared Pd/Ni nanocomposites possessed a single face-centered-cubic(fcc) Pd structure,probably due to a weaker diffraction intensity of metallic Ni and/or overlapping by that of Pd.The intrinsic catalytic activity on the Pd/Ni is higher than that on the Pd.Moreover,the durability of formic acid oxidation on the Pd/Ni was much enhanced over the Pd nanoparticles.The change in electronic structure of the surface coordination unsaturated Pd atoms and the possible dissolution of Ni species from the Pd/Ni heterostructure may account for such an improved durability for formic acid oxidation.关键词
甲酸氧化/电催化/Pd/Ni双金属/稳定性Key words
formic acid oxidation/electrocatalysis/Pd/Ni heterostructure/durability分类
化学化工引用本文复制引用
任明军,邹亮亮,陈举,袁婷,黄庆红,张海峰,杨辉,封松林..Pd/Ni异结构纳米催化剂的制备及其对甲酸氧化的电催化[J].电化学,2012,18(6):515-520,6.基金项目
supported by the National Basic Research Program of China（973 Program） （）
the Natural Science Foundation of China （）
Shanghai Science and Technology Committee （）
the Knowledge Innovation Engineering of the CAS （）
