无机材料学报

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致密SrCe0.95Y0.05O3-δ在含氢气氛下的电化学性质研究

张建敏1; 王吉德1; 王疆英2; 岳凡1   

  1. 1. 新疆大学化学系, 乌鲁木齐 830046; 2. 中国科学院新疆分院物理所, 乌鲁木齐 830011
  • 收稿日期:2000-05-26 修回日期:2000-07-03 出版日期:2001-05-20 网络出版日期:2001-05-20

Electrochemical Research of Dense SrCe0.95Y0.05O3-δ under Atmosphere Contained Hydrogen

ZHANG Jian-Min1; WANG Ji-De1; WANG Jiang-Ying2; YUE Fan1   

  1. 1.Xinjiang University; Department of Chemistry; Urumqi 830046; China; 2.Xinjiang Institute of Physics; Chinese Academy Siences; Urumqi 830011; China)
  • Received:2000-05-26 Revised:2000-07-03 Published:2001-05-20 Online:2001-05-20

摘要: 通过变换工作温度、施加电压、氢气分压、氢气流速等参数,对致密材料SrCe0.950.053-δ的电化学特性做了研究.同时,对该材料在高温下的电导稳定性做了初步探索.发现该种材料在高温氢气氛中有较好的质子传导性,施加电压及氢分压改变对质子传导性影响显著,流速对之影响在低温区不明显,但在高温区影响较大.最佳流速可选为 30mL/min.

关键词: SrCe0.95Y0.05O3-δ, 高温质子导体(HTPC), 质子传导

Abstract: Parameters such as applied voltage, hydrogen partial pressure, flow rate were changed respectively in order to research the electrochemical properties of dense
SrCe0.95Y0.05O3-δ. Meanwhile, the stability of this material was investigated. It suggests that this dense material exhibits excellent proton
conduction at high temperature in atmosphere contained hydrogen. Both the applied voltage and hydrogen partial pressure contribute mostly to proton conduction. The
proton conduction is attributed to flow rate of hydrogen less at low temperature while more at high temperature. The optimistic flow rate is 30mL/min.

Key words: SrCe0.95Y0.05O3-δ, high temperature proton conductor, proton conduction

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