Cobalt(II) Tetramethoxyphenylporphyrin (CoTMPP) Ionomer Stabilization to Prevent Electrode Degradation
AssigneeGM Global Technology Operations LLC
InventorsTimothy J. Fuller, Michael R. Schoeneweiss, Junliang Zhang
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Abstract
A membrane/electrode assembly for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer, a first electrode and a second electrode. At least one of the first and second electrodes also includes the porphyrin-containing compound. The membrane/electrode assembly exhibits improved performance over membrane/electrode assembly not incorporating such porphyrin-containing compounds.
Claims18
A membrane/electrode assembly for fuel cell applications, the membrane/electrode assembly comprising:
- an ion conducting polymer including an ion conducting polymer and a porphyrin-containing compound;
- a first electrode disposed over a first side of the ion conducting polymer;
- and
- a second electrode disposed over a second side of the ion conducting polymer, at least one of the first and second electrodes include the porphyrin-containing compound.
A membrane/electrode assembly for fuel cell applications, the membrane/electrode assembly comprising:
- an ion conducting membrane comprising ion conducting polymer that comprises a perfluorocyclobutyl moiety;
- and a porphyrin-containing compound having formula 1:
- wherein:
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 are each independently hydrogen, alkyl, or aryl.
Dependencies are inferred from the claim text.