N. Bukun et al., AC BEHAVIOR OF PROTON-CONDUCTING SOLID ELECTROLYTES BASED ON SULFOSALICYLIC ACID IN HYDROGEN ATMOSPHERE, Solid state ionics, 97(1-4), 1997, pp. 257-260
The conductivity (sigma) of sulphosalicylic acid and its composites wi
th iron(III) sulphosalicylate (1:4 molar) is measured using impedance
spectroscopy and the Hebb-Wagner polarization method. The conductance
is found to be purely protonic with typical values of sigma(25 degrees
C) = 4.1 x 10(-4) and 3.0 x 10(-4) S cm(-1), respectively. The exchan
ge currents at TiHx \ H+-solid electrolyte interphase boundaries incre
ase with increasing partial pressure of H-2 in mixtures with argon.