摘要
在组装的单体质子交换膜氢氧燃料电池系统上,用线性电位扫描法研究了不同电池温度和湿度下的阳极极化行为.发现发生钝化的输出槽压约为0.6 V,输出功率在最大值附近时,阳极产生钝化现象.钝化的起因是阳极铂催化剂氧化形成铂氧化物的结果.提高电池的工作温度和湿度,都加速了燃料电池阳极的钝化.
A hydrogen - oxygen proton exchange membrane fuel cell, with a control system for pressure, temperature and humidity, was set up. The anodic polarization behavior of this fuel cell was studied by linear sweep voltammetry. It was found that passivation of the anode took place at about 0.6 V （ vs. oxygen electrode） and maximum output power during anodic polarization. The passivafion was caused by the formation of platinum oxide and was enforced by increasing cell temperature and humidity.
出处
《华南师范大学学报（自然科学版）》
CAS
2005年第4期81-84,共4页
Journal of South China Normal University(Natural Science Edition)
基金
863计划资助项目(2003AA302410)
粤港关键领域重点突破资助项目(20042B08)
关键词
质子交换膜燃料电池
阳极
钝化
铂催化剂
proton exchange membrane fuel cell
anode
passivation
platinum catalyst
