Ho^3＋修饰的Pt/C电极对DMM的电催化氧化  

Electrooxidation of DMM at Pt/C catalysts modified with Ho^(3+)

作　　者：刘冉[1,2] 崔瑞海[2] 高颖[1] 邬冰[1] 

机构地区：[1]哈尔滨师范大学化学化工学院,黑龙江哈尔滨150080 [2]哈尔滨学院生命科学与化学学院,黑龙江哈尔滨150086

出　　处：《分子科学学报》2009年第1期15-18,共4页Journal of Molecular Science

基　　金：国家自然科学基金资助项目(20573029);黑龙江省自然科学基金资助项目(B200505);黑龙江省教育厅基金资助项目(11531243,11531235);哈尔滨市青年基金资助项目(2007RFQXG059)

摘　　要：通过循环伏安法(CV),计时电流法(CA)和线性扫描法(LSV)对二甲氧基甲烷的电氧化特性进行了研究.发现当用Ho3+修饰Pt/C催化剂电极后可以大幅度提高电极对DMM的电催化活性.热处理Ho3+修饰后Pt/C催化剂电极,可进一步提高该电极对DMM的电催化氧化活性.The electro-oxidation characteristics of dimethoxyrnethane （DMM）,which is a possible alternative fuel for direct methanol fuel cell （DMFC）,were carried out by cychcvoltammetry （CV） and chronoamperometry（CA） at Pt/C catalyst and the Pt/C electrodes modified with Ho^3＋. The eletrocatalytic activities were highly improved after the Pt/C electrodes were modified with Ho^3＋ .A new oxidation peak appeared at more negative potential after the heat- treatment of the electrodes modified with Ho^3＋ , which made the electrode more active for DMM electrooxidation.

关 键 词：直接甲醇然料电池 电催化氧化 二甲氧基甲烷 钬离子 

分 类 号：O64[理学—物理化学]