【摘要】 以10%Cu-Ce0.15Zr0.85O2为阳极、Pt为阴极和参考电极,组装了固体氧化物燃料电池(SOFC)单电池并进行了测试,考察了操作温度、甲烷流量等对电池性能的影响,发现提高操作温度以及在阳极材料中添加CeO2可以显著改善电池性能。升高温度,阳极极化曲线中的极限电流密度值随之上升;阳极中CeO2含量为10%时,功率最大值由未加时的4.10 mW/cm2增大至9.76 mW/cm2,对应的电流密度由12.22 mA/cm2增大至35.7 mA/cm2。甲烷的流量对电池开路电位有显著的影响,但当甲烷流量在18 mL/min以上时,其影响已十分微弱。更多还原

【Abstract】 The assembled SOFC with 10%Cu-Ce0.15Zr0.85O2 as anode, Pt as cathode and reference electrode was tested. Effects of temperature and flowrate of methane on the performance of the cell were studied. The results show that increasing the operating temperature and adding CeO2 to the anode can improve the performance of the battery distinctly. Limited current density in anode polarization curve increases as temperature increases. When the content of CeO2 is 10%, the power maximum value increases from 4.01 mW/cm2 to 9.76 mW/cm2, and current density increases from 12.22 mA/cm2 to 35.7 mA/cm2. The flowrate of methane can evidently influence the open-circuit voltage of fuel cell. But when the flowrate of methane above 18 mL/min, its effect begins to become very weak.更多还原