Method of preparing a dimensionally stable electrode for use in a molten carbonate fuel cell
Abstract
A method is disclosed for preparing a dimensionally stable electrode structure, particularly nickel-chromium anodes, for use in a molten carbonate fuel cell stack. A low-chromium to nickel alloy is provided and oxidized in a mildly oxidizing gas of sufficient oxidation potential to oxidize chromium in the alloy structure. Typically, a steam/H/sub 2/ gas mixture in a ratio of about 100/1 and at a temperature below 800/sup 0/C is used as the oxidizing medium. This method permits the use of less than 5 wt % chromium in nickel alloy electrodes while obtaining good resistance to creep in the electrodes of a fuel cell stack.
- Inventors:
- Issue Date:
- Research Org.:
- United Technologies Research Center, East Hartford, CT (United States)
- OSTI Identifier:
- 6665115
- Application Number:
- ON: DE87007294
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- AC21-79ET15440
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 30 DIRECT ENERGY CONVERSION; ELECTRODES; PRODUCTION; MOLTEN CARBONATE FUEL CELLS; NICKEL-CHROMIUM STEELS; OXIDATION; STABILITY; ALLOYS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; IRON ALLOYS; IRON BASE ALLOYS; NICKEL ALLOYS; NICKEL STEELS; STEELS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries
Citation Formats
Swarr, T E, and Wnuck, W G. Method of preparing a dimensionally stable electrode for use in a molten carbonate fuel cell. United States: N. p., 1986.
Web.
Swarr, T E, & Wnuck, W G. Method of preparing a dimensionally stable electrode for use in a molten carbonate fuel cell. United States.
Swarr, T E, and Wnuck, W G. Wed .
"Method of preparing a dimensionally stable electrode for use in a molten carbonate fuel cell". United States.
@article{osti_6665115,
title = {Method of preparing a dimensionally stable electrode for use in a molten carbonate fuel cell},
author = {Swarr, T E and Wnuck, W G},
abstractNote = {A method is disclosed for preparing a dimensionally stable electrode structure, particularly nickel-chromium anodes, for use in a molten carbonate fuel cell stack. A low-chromium to nickel alloy is provided and oxidized in a mildly oxidizing gas of sufficient oxidation potential to oxidize chromium in the alloy structure. Typically, a steam/H/sub 2/ gas mixture in a ratio of about 100/1 and at a temperature below 800/sup 0/C is used as the oxidizing medium. This method permits the use of less than 5 wt % chromium in nickel alloy electrodes while obtaining good resistance to creep in the electrodes of a fuel cell stack.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 29 00:00:00 EST 1986},
month = {Wed Jan 29 00:00:00 EST 1986}
}
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