Ink for producing catalyst layers

Details Ink for producing catalyst layers Ink for producing catalyst layers

2011-03-15

2011-03-15

Hailey, Patricia L (Department: 1793)

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

Catalyst or precursor therefor

Inorganic carbon containing

C502S150000, C502S168000, C502S172000, C502S180000, C502S182000, C429S523000, C429S524000, C429S525000, C429S526000

Reexamination Certificate

active

07906452

ABSTRACT:
The invention relates to an ink for producing catalyst layers for electrochemical devices. The ink comprises catalyst material, ionomer material, water and at least one organic solvent. The organic solvent belongs to the class of tertiary alcohol's and/or the class of aliphatic diketones and bears functional groups which are stable to oxidative degradation in the ink. This prevents formation of decomposition products in the ink. The ink of the invention displays a high storage stability and is used for producing catalyst-coated substrates for electrochemical devices, in particular fuel cells (PEMFCs, DMFCs).

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Written Opinion for PCT/EP06/02751.
PCT Request dated Mar. 25, 2006; International Search Report mailed Jun. 20, 2006; and Written Opinion of the ISA mailed Jun. 20, 2006.

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