high-temperature-type proton conductor;
hydrogen pumps;
current efficiency;
water vapor;
ionic transport number;
D O I:
10.1016/S0167-2738(01)00907-9
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In the electrochemical hydrogen pump based on SrCe(0.95)Yb(0.05)O(3-alpha) proton conductor cell, effects of water vapor supplied to the cathode and operation temperature on the pumping characteristics were examined. Hydrogen-pumping capacity could be enhanced by increasing water vapor supply to the cathode and by reducing operation temperature within the examined range of 700-900 degreesC. Presence of sufficient water vapor at the cathode would keep the current efficiency of the hydrogen pump. (C) 2001 Elsevier Science B.V. All rights reserved.
机构:
Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, JapanNagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
机构:
Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, JapanNagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan