Mechanism of transport and deposition of a platinum catalyst in the matrix of a hydrogen-oxygen fuel cell

Journal Article · Mon Jun 20 00:00:00 EDT 1983 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6972846

Zhutaeva, G V; Boikova, G V; Vol'fkovich, Y M; Shumilova, N A

The purpose of the present work was to study the effects occurring during dissolution of platinum under the conditions of operation of hydrogen-oxygen fuel cells with matrix electrolyte. It has been shown that the rate of platinum corrosion in the matrix electrolyte is close to the corrosion rate in free electrolyte. The platinum concentration in the matrix falls from the oxygen to the hydrogen electrode. Reduction of the platinum hexahydroxo complex in the ECGr membrane proceeds mainly by a chemical mechanism.

• OSTI ID: 6972846
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 56:1
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
HYDROGEN FUEL CELLS
ELECTROCATALYSTS
PLATINUM
CORROSION
CATALYTIC EFFECTS
CHEMICAL REACTIONS
DISSOLUTION
ELECTROLYTES
MATRIX MATERIALS
OPERATION
OXYGEN
CATALYSTS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
FUEL CELLS
MATERIALS
METALS
NONMETALS
PLATINUM METALS
TRANSITION ELEMENTS
300505* - Fuel Cells- Electrochemistry
Mass Transfer & Thermodynamics