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进气温度对Ni-YSZ阳极支撑型平板式SOFC工作特性的影响

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Abstract:

评估了进气温度对以氢气为燃料的平板式电极支撑固体氧化物燃料电池(planarelectrodesupportedsolidoxidefuelcell,PES-SOFC)工作特性的影响,结果表明在设定总电流情况下,组分分布随进气温度变化不明显;随着进气温度从1273.15K下降到1023.15K,输出电压逐渐减小,且减小趋势增加;当进气温度低于973.15K时,平板式SOFC入口段Nernst电动势几乎被Ohm过电势和活化过电势抵消;因此,对于以氢气为燃料、镍掺杂氧化钇稳定氧化锆(yttriastabilizedzirconia,YSZ)Ni-YSZ/YSZ为阳极和电解质层的平板式SOFC,不建议在低于973.15K的进气温度下运行。

References

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