摘要
采用液相化学还原浸渍法制备高分散的炭载钯钌(Pd-Ru/C)催化剂;运用X射线衍射(XRD)、能谱(EDS)、循环伏安法(CV)和线性扫描法(LSV)等技术分析催化剂的结构、组成及催化剂对甲酸的电催化氧化性能;通过不同温度线性扫描曲线获得不同电位下甲酸在Pd-Ru/C催化剂上氧化反应的活化能。结果表明,与Pd/C、Ru/C催化剂相比,Pd-Ru/C催化剂对甲酸的电催化氧化具有更高的电催化活性;在较高电位时,甲酸在Pd-Ru/C催化剂上的电催化氧化对温度更敏感。
The carbon supported highly dispersed Pd -Ru catalyst was prepared by a liquid phase chemical reduction method. The catalyst prepared has been characterized and analyzed by X-ray diffraction （XRD） , Energy Disperse Spectroscopy （EDS）, cyclic voltammetry （CV） and linear scanning curves （LVs）. The activation energy （Ea ） of the formic acid oxidation reaction at a Pd - Ru/C eletrode at different poentials were estimated by the study of the linear scanning curves at different temperature. The results showed that Pd - Ru/C catalyst possessed the higher electrocatalytic activity for formic acid oxidation, comparing with the Pd/C and Ru/C. And the eleetrocatalytic activity was more sensitive to the temperature at higher potential.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2011年第1期81-84,共4页
Journal of Natural Science of Heilongjiang University
基金
黑龙江省自然科学基金资助项目(B201002)
黑龙江省教育厅科学技术研究面上项目(11531243)
关键词
Pd—Ru/C催化剂
甲酸
电催化氧化
活化能
Pd-Ru/C catalyst
formic acid
electrocatalytic oxidation
activation energy
