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.
出处
《电化学》
CAS
CSCD
北大核心
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
关键词
铂
三氧化钨
电催化氧化
甲醇
一氧化碳
platinum
tungsten trioxide
electrocatalytic-oxidation
methanol
carbon monoxide