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Effect of halide ion adsorption on hydrogen overpotential at indium

Journal Article · · Sov. Electrochem. (Engl. Transl.); (United States)
OSTI ID:5387256
The authors study the effect of halide ion adsorption on hydrogen overpotential at indium and compare that effect to previous studies done at gallium and mercury. The hydrogen overpotential at indium was measured in acidic solutions (1 N H/sub 2/SO/sub 4/) to which 1 N KCl, KBr, and KI were added. It was found that at In, the hydrogen overpotential decreases in the region of anion adsorption in the order to Cl/sup -/ is less than Br/sup -/ is less than I/sup -/. Also, the free energy of bonding of the halide ions on indium increases in the order of Cl/sup -/ is less than Br/sup -/ is less than I/sup -/.
Research Organization:
A. N. Frumkin Institute of Electrochemistry, Moscow (USSR)
OSTI ID:
5387256
Journal Information:
Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:2; ISSN SOECA
Country of Publication:
United States
Language:
English