Li2SO4;
chemical stability;
fuel cell;
proton conductor;
D O I:
10.1016/S0167-2738(98)00263-X
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:
The chemical stability of Li2SO4 on the operation condition of a H-2/O-2 fuel cell has been investigated in this work. Thermodynamic calculation indicates Li2SO4 can react with H-2 at high temperature. The H-2/O-2 fuel cell using Li2SO4-alpha-Al2O3 as electrolyte exhibits good performance, but the stability of performance is not good. XRD analysis indicates that Li2SO4 reacts with H-2 at high temperature. Therefore, the Li2SO4-based proton conductors are not suitable for electrolytes for H-2/O-2 fuel cells. (C) 1999 Published by Elsevier Science B.V. All rights reserved.