Fabrication of catalytic electrodes for molten carbonate fuel cells
- Lemont, IL
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.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4780437
- OSTI ID:
- 866753
- Country of Publication:
- United States
- Language:
- English
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bond
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catalyst
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catalyst particle
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decompose
depositing
distribution
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elongated
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extending
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flocking
fuel
fuel cell
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gas
heated
layer
layer thickness
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steps
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substantially extending
substrate
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thickness
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