Corrosion-resistant catalyst supports for phosphoric acid fuel cells
High-surface-area carbon blacks such as Vulcan XC-72 (Cabot Corp.) and graphitized carbon blacks such as 2700{degree}C heat-treated Black Pearls 2000 (HTBP) (Cabot Corp.) have found widespread applications as catalyst supports in phosphoric acid fuel cells (PAFCs). However, due to the operating temperatures and pressures being utilized in PAFCs currently under development, the carbon-based cathode catalyst supports suffer from corrosion, which decreases the performance and life span of a PAFC stack. The feasibility of using alternative, low-cost, corrosion-resistant catalyst support (CRCS) materials as replacements for the cathode carbon support materials was investigated. The objectives of the program were to prepare high-surface-area alternative supports and to evaluate the physical characteristics and the electrochemical stability of these materials. The O{sub 2} reduction activity of the platinized CRCS materials was also evaluated. 2 refs., 3 figs.
- Research Organization:
- Giner, Inc., Waltham, MA (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-90ER80861; AC02-89ER80807
- OSTI ID:
- 6497148
- Report Number(s):
- CONF-901106-2-Extd.Abst.; ON: DE91001713
- Country of Publication:
- United States
- Language:
- English
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Stabilizing platinum in phosphoric acid fuel cells. First quarterly report for 1981, December 1980-March 1981
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Related Subjects
300503 -- Fuel Cells-- Materials
Components
& Auxiliaries
300505* -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
ACID ELECTROLYTE FUEL CELLS
CARBON
CARBON BLACK
CATALYST SUPPORTS
CORROSION RESISTANCE
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
FUEL CELLS
HEAT TREATMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NONMETALS
PHOSPHORIC ACID