Definition of chemical and electrochemical properties of a fuel cell electrolyte. Interim technical report, 24 July 1978-24 December 1979
Technical Report
·
OSTI ID:6729555
The present research is oriented toward the task of developing an improved electrolyte for the direct hydrocarbon-air fuel cell. The electrochemical behavior of methanesulfonic acid, ethanesulfonic acid, and sulfoacetic acid as fuel cell electrolytes was studied in a half cell at various temperatures. The rate of electro-oxidation of hydrogen at 115 degrees was very high in methanesulfonic acid and sulfoacetic acids. The rate of the electro-oxidation of propane in methanesulfonic acid at 80/sup 0/C and 115/sup 0/C was low. Further, there is evidence for adsorption of these acids on the platinum electrode. Sulfoacetic acid with H/sup 2/ has supported about two times higher current density than trifluoromethanesulfonic acid monohydrate, but, attempts to purify the compound were unsuccessful. It was concluded that anhydrous sulfonic acids are not good electrolytes; water solutions are required. Sulfonic acids containing unprotected C-H bonds are adsorbed on platinum and probably decompose during electrolysis. A completely substituted sulfonic acid would be the preferred electrolyte.
- Research Organization:
- American Univ., Washington, DC
- OSTI ID:
- 6729555
- Report Number(s):
- AD-A-083608
- Country of Publication:
- United States
- Language:
- English
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Journal Article
·
Sat Oct 31 23:00:00 EST 1981
· J. Electrochem. Soc.; (United States)
·
OSTI ID:5485736
Definition of chemical and electrochemical properties of a fuel cell electrolyte. Final technical report 25 Mar 77-24 Jun 80
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Thu Jul 01 00:00:00 EDT 1976
·
OSTI ID:7217033
Related Subjects
30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
ACID ELECTROLYTE FUEL CELLS
ADSORPTION
AIR
ALKANES
CHEMICAL REACTIONS
CHEMISTRY
CURRENT DENSITY
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
FLUIDS
FUEL CELLS
GASES
HYDROCARBON FUEL CELLS
HYDROCARBONS
HYDROGEN
METALS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PERFORMANCE TESTING
PLATINUM
PLATINUM METALS
PROPANE
SORPTION
SULFONIC ACIDS
TESTING
TRANSITION ELEMENTS
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
ACID ELECTROLYTE FUEL CELLS
ADSORPTION
AIR
ALKANES
CHEMICAL REACTIONS
CHEMISTRY
CURRENT DENSITY
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
FLUIDS
FUEL CELLS
GASES
HYDROCARBON FUEL CELLS
HYDROCARBONS
HYDROGEN
METALS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PERFORMANCE TESTING
PLATINUM
PLATINUM METALS
PROPANE
SORPTION
SULFONIC ACIDS
TESTING
TRANSITION ELEMENTS