致密SrCe0.95Y0.05O3-δ在含氢气氛下的电化学性质研究

无机材料学报, 2001, 16(3): 559-562.

致密SrCe_0.95Y_0.05O_3-δ在含氢气氛下的电化学性质研究

张建敏 , 王吉德 , 王疆英 , 岳凡

1.1. 新疆大学化学系, 乌鲁木齐 830046

1.1.Xinjiang University

Urumqi 830046

2. 2.Xinjiang Institute of Physics

Chinese Academy Siences

Urumqi 830011

China）

关键词： SrCe_0.95Y_0.05O_3-δ , high temperature proton conductor , proton conduction

Electrochemical Research of Dense SrCe_0.95Y_0.05O_3-δ under Atmosphere Contained Hydrogen

ZHANG Jian-Min , WANG Ji-De , WANG Jiang-Ying , YUE Fan

Keywords： SrCe_0.95Y_0.05O_3-δ , 高温质子导体（HTPC） , 质子传导

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ＳｒＣｅ_０．９５Ｙ_０．０５Ｏ_３－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．

Parameters such as applied voltage, hydrogen partial pressure, flow rate were changed respectively in order to research the electrochemical properties of dense
SrCe_0.95Y_0.05O_3-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.

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