Fabrication of catalytic electrodes for molten carbonate fuel ce

Details Fabrication of catalytic electrodes for molten carbonate fuel ce Fabrication of catalytic electrodes for molten carbonate fuel ce

1987-02-11

1988-10-25

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Making catalytic electrode, process only

264 56, 264104, 419 2, 419 19, 419 23, 429 45, 429221, 502527, H01M 488, B22F 310

Patent

active

047804378

ABSTRACT:
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.

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