Phosphoric acid absorption and performance of gas diffusion electrode. [In fuel cell]

Journal Article · Thu May 01 04:00:00 EDT 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2108758· OSTI ID:5286730

Mori, T; Imahashi, J; Kamo, T; Tamura, K; Hishinuma, Y

The relationship between acid absorption of the catalyst layer and performance of the gas diffusion electrode in a phosphoric acid fuel cell is investigated, together with the size of pores available for the cathode and anode reactions. The electrode was made from a carbon-supported platinum catalyst and a polytetrafluoroethylene dispersion spread (with a subsequent heating) on a porous carbon substrate. It was found that a nonionic surfactant contained in the dispersion enhanced acid absorption. An analysis of the pore volume and pore distribution indicated that pores from 0.2 to 10 microns in diameter are available for the electrode reactions. 7 references.

• Research Organization: Hitachi, Ltd., Japan
• OSTI ID: 5286730
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
ABSORPTION
CARBON
CATALYSTS
DIFFUSION
DIRECT ENERGY CONVERTERS
ELECTROCATALYSTS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
FLUORINATED ALIPHATIC HYDROCARBONS
FUEL CELLS
GASEOUS DIFFUSION
HALOGENATED ALIPHATIC HYDROCARBONS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE
PLATINUM
PLATINUM METALS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
POROSITY
TRANSITION ELEMENTS