操作条件对固体氧化物燃料电池阳极反应转变的影响  

Effect of operation conditions on reaction over anode in SOFC

作　　者：由宏新[1] 丁信伟[1] 高国栋[1] 阿布里提.阿布都拉 

机构地区：[1]大连理工大学化工学院,辽宁大连116012 [2]日本青森工业综合研究所新能源研究部

出　　处：《化工进展》2008年第10期1624-1627,1636,共5页Chemical Industry and Engineering Progress

摘　　要：研究了不同电流密度下,甲烷浓度、反应温度对甲烷在SOFC中反应由部分氧化到完全氧化转变的规律;测量了不同电流密度下,阳极出口气体产生速率;确定了甲烷浓度和电池反应温度变化时甲烷电化学反应由部分氧化转变为完全氧化的电流密度门槛值,及该门槛值与甲烷浓度、电池操作温度的变化关系。结果说明甲烷开始发生完全氧化的电流密度门槛值与甲烷浓度成正比;甲烷浓度一定,温度升高,甲烷开始发生完全氧化的电流密度的门槛值也随之提高。The reactions of low and medium concentration dry methane over the anode of solid oxide fuel cell (SOFC) with Ni/yttria-stabilized zirconia(YSZ) anode and YSZ electrolyte were studied. The production rates of gases at anode outlet were measured at different current densities. Mass balance and the relations of production rates with reaction rates were used to analyze the chemical and electrochemical reactions taking place in parallel. For low concentration dry methane,partial oxidation of methane occurred at...

关 键 词：固体氧化物燃料电池 甲烷 反应 阳极 

分 类 号：TM911.4[电气工程—电力电子与电力传动]