| BaCe0.8Y0.2O3-α固体电解质的离子导电性及其燃料电池性能 |
| Ionic Conduction in BaCe0.8Y0.2O3-α and its Performance of Solid Oxide Fuel Cell |
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| 摘要: 用高温固相反应合成了BaCe0.8Y0.2O3-α固体电解质用氢浓差电池和氧浓差电池方法研究了它的离子导电特性。以该氧化物为固体电解质多孔性Pt为电极材料,组成氢-空气燃料电池,测定了该燃料电池的电流-电压特性。研究发现,BaCe0.8Y0.2O3-α在氢气中几乎是一个纯的质子导体,在氧气中是一个氧离子和电子空穴的混合导体,其燃料电池的开路电压(OCV)接近于理论值,最大输出 |
| 关键词: 铈酸钡 固体电解质 气体浓差电池 固体氧化物燃料电池 |
| 基金项目: |
| Abstract: BaCe0.8Y0.2O3-α solid electrolyte was prepared by hi gh-temperature solid state reactio n and its ionic conduction was investigated b y means of hydrogen concentration cell and oxygen concentration cell.Using BaCe0.8Y0.2O3-α as a solid electrolyte and porous pla tinum as electrodes,hydrogen-air fuel cell was constructed and the I-V characteristic of the fuel cell was d etermined.It was found that BaCe0.8Y0.2O3-α exhibited the almost pure protonic c onduction under hydrogen gas and a mixed conduction of oxide-ion and electro n hole under oxygen gas,and that the f uel cell exhibited good and stable performance in the temperatu re range of 600～1000℃.The open-circ uit voltage(OCV)is close to the theoretical value.The maximum current output and the maximu m power output from the cell were about 680mA·cm-2 and 200mW·cm-2 at 1000℃,respectively. |
| Keywords: BaCeO3 solid electrolyte gas concentration cell solid oxide fuel cell |
| 投稿时间：2001-07-06 修订日期：2001-09-17 |
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| 马桂林,仇立干,贾定先,陈蓉,石慧.BaCe0.8Y0.2O3-α固体电解质的离子导电性及其燃料电池性能[J].无机化学学报,2001,17(6):853-858. |
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