SOFC中干甲烷流量对Ni-YSZ阳极上反应的影响The Effect of Dry Methane Flux on the Methane Reactions in Solid Oxide Fuel Cell at Ni-YSZ Anode
由宏新,高红杰,刘润杰,陈刚,阿布里提,丁信伟
摘要(Abstract)：
为为探讨SOFC中干甲烷流量对反应的影响,采用色谱在线检测阳极尾气,总结阳极尾气的变化规律,在此基础上,分析干甲烷在固体氧化物燃料电池Ni-YSZ阳极上的反应,寻找干甲烷流量与电流对电池阳极反应影响的数学关系。依据甲烷基元反应的活化能分析反应的途径,结果表明,随电流密度以及氧离子流量的增加,干甲烷与不同电流密度下的氧离子依次发生电化学反应。这些电化学反应分别是甲烷部分氧化反应生成CO、H2并产生电子,或生成CO、H2O、H2和产生电子的反应,或产生CO、H2O和产生电子的反应,或甲烷完全氧化的电化学反应。高流量甲烷只发生消耗氧离子最少的部分氧化反应,中流量甲烷发生前两个或前三个反应。依据法拉第第一定律及反应物之间的关系,确定甲烷的低、中、高流量的判定依据分别为:v(CH4)小于等于I/(4F),v(CH4)大于等于I/(4F)以及小于等于I/(2F),v(CH4)大于等于I/(2F)。
关键词(KeyWords)： 固体氧化物燃料电池;阳极;甲烷;反应
基金项目(Foundation):
作者(Author): 由宏新,高红杰,刘润杰,陈刚,阿布里提,丁信伟
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