中文摘要：

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Ho^3＋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Ho^3＋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.

英文摘要：

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.