The polarization of porous platinum electrodes in a solid-electrolyte cell in oxygen atmosphere

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

OSTI ID:7194491

Glumov, M V

The overvoltage of porous platinum electrodes in contact with 0.9 ZrO/sub 2/-0.1 Y/sub 2/0/sub 3/ electrolyte was studied as a function of current density and oxygen pressure in an atmosphere of free oxygen. The porous electrodes were prepared by baking a layer of platinum paste with an original metal grain size of about 1 micrometer onto the ground surfaces of plates of the electrolyte, in air at 1623degreeK. The analysis only provides evidence for diffusion limitations with respect to electrons and holes in the electrolyte, and shows that marked limitations are not present for the transfer reaction, and for the evolution and dissolution of oxygen at the gas/electrolyte interface, at least not in the cathodic region.

• Research Organization: Institute of Electrochemistry, Urals Sciences Center, Academy of Sciences of the USSR, Sverdlovsk
• OSTI ID: 7194491
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Vol. 22:207-211
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
PLATINUM
POLARIZATION
YTTRIUM OXIDES
ELECTRON TRANSFER
ZIRCONIUM OXIDES
CURRENT DENSITY
DIFFUSION
ELECTRODES
ELECTRONS
HOLES
OVERVOLTAGE
OXYGEN
PARTIAL PRESSURE
POROSITY
SOLID ELECTROLYTES
VACANCIES
CHALCOGENIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTROLYTES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
LEPTONS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POINT DEFECTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
400400* - Electrochemistry