交替微波加热法制备PtAuSn／C催化剂的研究  

Preparation of PtAuSn/C catalyst by intermittent microwave heating method

作　　者：刘莹丽[1,3] 常照荣[1] 王海江 朱红[3] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453007 [2]加拿大国家研究院燃料电池创新研究所,加拿大温哥华V6T1W5 [3]北京交通大学理学院化学系,北京100044

出　　处：《电源技术》2009年第4期340-341,共2页Chinese Journal of Power Sources

基　　金：北京市自然基金“重点”项目(2051001);北京市自然基金“面上”项目(2073031);科技部国际合作项目(2006DFA61240)

摘　　要：以VulcanXC-72R碳黑为载体,用交替微波加热法制备了PtAuSn/C电催化剂。采用X射线衍射光谱法(XRD)和透射电子显微镜法(TEM)分析技术对催化剂进行了表征,并对甲醇的电化学氧化性能进行了研究。结果表明:所制备的PtAuSn/C电催化剂具有较小的纳米尺寸以及较高的分散程度,其电催化性能均优于Pt/C催化剂。Carbon-supported PtAuSn nanoparticle catalyst was synthesized by intermittent microwave heating method. The catalyst thus obtained was characterized by transmission electron microscopy and X-ray diffraction analysis. The electrochemical performance of the catalyst, for the methanol oxidation reaction, was also investigated. The results indicate that the PtAuSn/C catalyst is uniformly dispersed on carbon and in the nano-size range. The electrochemical measurements indicate that PtAuSn/C nanoparticle catalyst synthesized by intermittent microwave heating method demonstrates a significantly higher electrochemically active area and higher catalytic activitv than Pt/C for the methanol oxidation reaction.

关 键 词：交替微波加热法 PtAuSn/C催化剂 纳米材料 直接甲醇燃料电池 

分 类 号：TM911[电气工程—电力电子与电力传动]