交替微波加热法制备Pt/C催化剂的研究  

Studies on Pt/C catalysts prepared by intermittent microwave heating

作　　者：田植群[1] 沈培康[2] 古国榜[1] 

机构地区：[1]华南理工大学应用化学系,广东广州510640 [2]中山大学物理科学与工程技术学院,广东广州510275

出　　处：《电池》2004年第3期204-206,共3页Battery Bimonthly

基　　金：广州市科技攻关重点项目 ( 2 0 0 3Z2 -D0 0 81) ;国家十五 863项目 ( 2 0 0 3AA5 170 5 0 )

摘　　要：利用交替微波加热法制备了Pt载量高于 40 %的Pt/C催化剂 ,具有制备过程简单 ,方便 ,快速等特点。采用TEM和XRD等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 :以本法制备的Pt/C催化剂的Pt颗粒高度均匀地分散于VulcanXC 72碳载体上 ,粒径分布在 2 5～ 5nm之间。由该催化剂制备的电极对甲醇的电化学氧化性能优于EPt/C catalysts with Pt loading higher than 40% were prepared by intermittent microwave heating (IMH) method. This method had the advantages of fast, simple and easy to operate. TEM and XRD measurements indicated that Pt particles of the Pt/C catalyst prepared by this method were uniformly dispersed onVulcan XC-72 carbon black and particle size range was 2.5～5nm. The catalytic activity of Pt/C for the electro-oxidation of methanol was better than that of E-TEK product.

关 键 词：交替微波加热(IMH) 电催化剂 燃料电池 纳米材料 

分 类 号：TM911.4[电气工程—电力电子与电力传动]