Cadmium ion adsorption on nickel surface Raney catalysts, and its effect on cathodic hydrogen evolution

Journal Article · Mon Sep 01 00:00:00 EDT 1986 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:6952186

Korovin, N V; Savel'eva, O N; Udris, E Y

Cadmium adsorption was studied at nickel surface Raney catalysts (Ni /SUB src/ ) in CdSO/sub 4/ solutions of different concentrations by recording potentiodynamic and polarization curves and adducing electron microscopy and X-ray spectrometry. It was shown that the main features of cadmium adsorption on Ni /SUB SRC/ are similar to those found at smooth and Raney nickel. It was concluded that irreversible desorption of hydrogen of high and intermediate bond strength from the electrode surfaces which occurs when cadmium is adsorbed on these sites is responsible for the enhanced catalytic activity exhibited in cathodic hydrogen evolution from alkaline solutions by electrodes based on Ni /SUB SRC/ when conditioned in solutions containing Cd/sup 2 +/ ions.

• Research Organization: Moscow Power Engineering Institute
• OSTI ID: 6952186
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 22:3; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ADSORPTION
ALLOYS
ALUMINIUM ALLOYS
CADMIUM COMPOUNDS
CADMIUM SULFATES
CATALYTIC EFFECTS
CATHODES
CHEMISTRY
DEGASSING
DESORPTION
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
HYDROGEN
NICKEL ALLOYS
NONMETALS
OVERVOLTAGE
OXYGEN COMPOUNDS
SORPTION
SULFATES
SULFUR COMPOUNDS