高等学校化学学报2011，Vol.32Issue(11)：2618-2625,8.
碱性介质中W,Ni和Sn掺杂的Pt-Ru/C电催化氧化甲醇的性能
Performance of Pt-Ru/C Catalysts Doped with W, Ni and Sn for Electrocatalytic Oxidation of Methanol in Alkaline Media
摘要
Abstract
The catalysts of Pt-Ru-M/C ( M = W, Ni, Sn ) with different atom ratio were prepared by colloidal method. The surface composition and crystal structure of nano-particle supported by carbon black were charac terized by X-ray diffraction and X-ray photoelectron spectroscopy. The catalyst activity in different methanol and NaOH concentration electrolytes was measured by cyclic voltammeter. The results show that the perfor mance of methanol electro-oxidation on the Pt-Ru/C catalysts can be improved markedly by doping with Ni and W, and be reduced by doping with Sn, and the peak current density on Pt5-Ru4-Ni07/C reaches 835. 2 mA/ mg and the onset potential of methanol electro-oxidation is 0. 11 V lower than that of Pt5-Ru5/C in 1. 0 mol/L NaOH +1.0 mol/L CH3OH.关键词
碱性介质/甲醇/电氧化/铂基合金/活性Key words
Alkline media/ Methanol/ Electro-oxidation/ Pt-based alloy/ Activity分类
化学化工引用本文复制引用
段东红,张忠林,张涛,刘世斌,郝晓刚,李一兵..碱性介质中W,Ni和Sn掺杂的Pt-Ru/C电催化氧化甲醇的性能[J].高等学校化学学报,2011,32(11):2618-2625,8.基金项目
国家自然科学基金(批准号:20676088)和教育部博士点基金(批准号:20091402110009)资助. （批准号:20676088）
