甲醇在Pt/C和Pt/WO3/C电极上的电氧化  

Electrocatalytic Performance of Pt/C and Pt/WO_3/C Catalysts for Methanol Oxidation

作　　者：初园园[1] 邬冰[1] 唐亚文[2] 陆天虹[2] 高颖[1] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150080 [2]南京师范大学化学与环境科学学院,江苏南京210097

出　　处：《电化学》2008年第2期155-158,共4页Journal of Electrochemistry

基　　金：863计划项目(2006AA05Z137);国家自然科学基金(20573029,20573057);黑龙江省自然科学基金(B200505);哈尔滨市科技创新人才研究专项资金(2007RFQXG059);黑龙江省研究生创新科研项目(YJSCX2007-0314HLJ);江苏省自然科学基金(BK2006224);江苏省教育厅自然科学基金(05KJB150061)资助

摘　　要：用液相还原法制备碳载Pt(Pt/C)和碳载Pt/WO3(Pt/WO3/C)催化剂.实验表明该催化剂中加入一定量的WO3后,其对甲醇的催化氧化活性和稳定性都有一定提高,并以Pt、W原子比为1∶1的催化剂性能最好.这是由于Pt催化剂中加入了WO3后,其电化学活性比表面积增大,并且降低了对CO吸附强度.The catalysts of Carbon supported Pt（Pt/C） and carbon supported Pt/WO3 （Pt/WO3/C） were prepared with liquid phase reduction method. It was found that the catalytic activity and stability of the Pt/WO3/C catalysts were increased with the addition of WO3. When the atomic ratio of Pt and W was 1： 1, the best electrocatalytic performance of the Pt/WO3/C catalyst for the methanol oxidation was obtained. This is attributed to the larger electrochemical surface area of Pt/WO3/C and the weeker adsorption of CO towards the catalyst.

关 键 词：铂 三氧化钨 电催化氧化 甲醇 一氧化碳 

分 类 号：O646.54[理学—物理化学]