Fabrication of fuel cell electrodes and other catalytic structures
A porous layer of catalyst material suitable for use as an electrode in a molten carbonate fuel cell includes elongated pores substantially extending across the layer thickness. The catalyst layer is prepared by depositing particulate catalyst material into polymeric flocking on a substrate surface by a procedure such as tape casting. The loaded substrate is heated in a series of steps with rising temperatures to set the tape, thermally decompose the substrate with flocking and sinter bond the catalyst particles into a porous catalytic layer with elongated pores across its thickness. Employed as an electrode, the elongated pores provide distribution of reactant gas into contact with catalyst particles wetted by molten electrolyte. 1 fig.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- ANL; ERA-14-000761; EDB-88-183974
- Patent Number(s):
- PATENTS-US-A6013472
- OSTI ID:
- 6813153
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
300501* -- Fuel Cells-- Design & Development
300503 -- Fuel Cells-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ANODES
CATALYSTS
CATHODES
CHALCOGENIDES
DESIGN
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
FABRICATION
FUEL CELLS
HIGH-TEMPERATURE FUEL CELLS
INVENTIONS
IRON COMPOUNDS
LITHIUM COMPOUNDS
MOLTEN CARBONATE FUEL CELLS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS