碱性醇类燃料电池新型催化剂的研究  

Studies on novel catalysts for direct alcohol alkaline fuel cells

作　　者：徐常威[1] 沈培康[1] 

机构地区：[1]中山大学物理科学与工程技术学院光电材料与技术国家重点实验室,广东广州510275

出　　处：《电源技术》2005年第9期563-565,573,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金项目(20476108);国家十五863项目(2003AA517050);广东省自然科学重点基金项目(01105500);广州市科技攻关重点项目(2003Z2-D0081)

摘　　要：用交替微波加热法快速制备CeO2/C复合材料,进而制备Pt-CeO2/C。用电化学方法研究了甲醇、乙醇、甘油和乙二醇在KOH溶液中在Pt/C或Pt-CeO2/C电极上的电化学氧化性能。结果显示负载在碳粉上的Pt和Pt-CeO2催化剂对四种醇的电化学氧化具有较高的活性。而Pt-CeO2/C催化剂与Pt/C催化剂相比表现了更好的活性和更强的抗毒化能力。CeO2/C composites were prepared by intermittent microwave heating （IMH） method and then were used as support to make Pt-CeO2/C catalysts. The oxidation properties of methanol,ethanol,glycerol and ethylene glycol on Pt/C or Pt-CeO2/C electrodes were measured by electrochemical techniques. The results show that both Pt/C and Pt-CeO2/C electrodes are active for the oxidation of all alcohols. However, the addition of CeO2 makes Pt-CeO2/C electrode more active. The facts indicate that Pt-CeO2/C catalysts are better for resisting the poisoning.

关 键 词：燃料电池 碱性溶液 CEO2 交替微波加热法 

分 类 号：TM911.4[电气工程—电力电子与电力传动]