PROTON ACTIVITIES IN CONCENTRATED PHOSPHORIC AND TRIFLUOROMETHANE SULFONIC-ACID AT ELEVATED-TEMPERATURE IN RELATION TO ACID FUEL-CELLS

被引:14
作者
BHARDWAJ, RC
ENAYETULLAH, MA
BOCKRIS, JO
机构
[1] Surface Electrochemistry Laboratory, Department of Chemistry, Texas A&M University, College Station
关键词
D O I
10.1149/1.2086867
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The proton activity of phosphoric acid and trifluoromethane sulfonic acid is determined at 150° and 90°C by electrochemical potential measurements. The transference number of ions required for the calculation of proton activity is determined by measuring the diffusion coefficients of ions using radiotracer techniques. The proton activity of TFMSA is determined to be higher than that of phosphoric acid at the temperature and concentration at which the acid fuel cell operates. © 1990, The Electrochemical Society, Inc. All rights reserved.
引用
收藏
页码:2070 / 2075
页数:6
相关论文
共 47 条
[41]   IONIC HYDRATION AND ACTIVITY IN ELECTROLYTE SOLUTIONS [J].
STOKES, RH ;
ROBINSON, RA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1948, 70 (05) :1870-1878
[42]  
SZABO ZG, 1976, 2ND S ION SEL EL, P207
[45]  
WEAST RC, 1985, CRC HDB CHEM PHYSICS
[46]  
YEAGER EB, 1981, EPRI EM1814 REP
[47]   A COMPARISON OF THE PROPERTIES OF CF3SO3H AND H3PO4 IN RELATION TO FUEL-CELLS [J].
ZELENAY, P ;
SCHARIFKER, BR ;
BOCKRIS, JO ;
GERVASIO, D .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1986, 133 (11) :2262-2267