Research on electrochemical energy conversion systems. Interim progress report No. 6, Apr--Oct 1974

Technical Report · Sat Mar 01 04:00:00 EDT 1975

OSTI ID:7191495

Adams, A A; Foley, R T

The research has involved work on two tasks: a search for electrolytes alternative to phosphoric acid for direct and indirect hydrocarbon-air fuel cells, and a study of the corrosion characteristics of electrolytes for intermediate-temperature hydrocarbon-air fuel cells. The effort during this reporting period has been concentrated on the further investigation of the electrochemical behavior of trifluoromethanesulfonic acid monohydrate as a fuel cell electrolyte. The studies dealt with the use of methanol as a fuel, both from electrooxidation at a platinum electrode and from its tendency to interfere with the air electrode. Methanol dissolved in CF/sub 3/SO/sub 3/H.H/sub 2/O was electrooxidized over a temperature range of 23 C to 135 C with the highest rate in the neighborhood of 80 C. At temperatures above 100 C vaporization losses are excessive. Methanol interferes with the air electrode. The electrochemical activities of hydrogen, propane, and air were investigated at a platinum electrode in CF/sub 3/SO/sub 3/H.H/sub 2/O at 23 C. (GRA)

• Research Organization: American Univ., Washington, D.C.
• OSTI ID: 7191495
• Report Number(s): AD-A-014067/3ST
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
AIR
ALCOHOLS
ALKANES
CATALYSTS
CHEMICAL REACTIONS
CHEMISTRY
CORROSION
CORROSIVE EFFECTS
CRYOGENIC FLUIDS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
FLUIDS
FUEL CELLS
GASES
HYDROCARBON FUEL CELLS
HYDROCARBONS
HYDROGEN
HYDROXY COMPOUNDS
METALS
METHANOL
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PLATINUM
PLATINUM METALS
PROPANE
RESEARCH PROGRAMS
SULFONIC ACIDS
TRANSITION ELEMENTS