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US 8,409,765 B2Granted
Co(II)tetramethoxyphenylporphyrin additive to PFSA PEMS for improved fuel cell durability
AssigneeGM Global Technology Operations LLC
InventorsMichael R. Schoeneweiss, Timothy J. Fuller, Frank Coms, Sean M MacKinnon
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Abstract
An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such porphyrin-containing compounds.
Claims7
An ion conducting membrane for fuel cell applications, the ion conducting membrane comprising:
- an ion conducting polymer including a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer;
- and
- a porphyrin-containing compound, wherein the porphyrin-containing compound includes a moiety having formula 1:
- wherein:
- R1, R2, R3, R4 are each independently phenylmethoxy and R5, R6, R7, R8, R9, R10, R11, R12 are each independently hydrogen, alkyl, or aryl.
2 more elements
Dependencies are inferred from the claim text.