Membrane and electrode structure
First Claim
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1. An electrode composition comprising:
- (a) catalytically active particles;
(b) a hydrocarbon selected from the group of 1-methoxy-2propanol, 1-ethoxy-2-propanol;
1-methoxy-2-methyl-2-propanol;
1-isopropoxy-2-propanol;
1-propoxy-2-propanol;
2-phenoxy-1-propanol;
2-ethoxy-1-propanol;
2,3-ethoxy-1-propanol;
2-methoxy- 1-propanol;
1-butoxy-2-propanol;
or mixtures thereof; and
(c) a binder.
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Abstract
The electrode layer of a ion exchange membrane is formed by printing a ink of catalytically active particles on the surface of the membrane. The inventive electrode ink comprises:
(a) catalytically active particles;
(b) a hydrocarbon having at least one ether, epoxy or ketone linkage and an alcohol group, preferably 1-methoxy 2-propanol; and
(c) optionally a binder, preferably perfluorinated sulfonyl fluoride polymer or perfluorinated sulfonic acid polymer.
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Citations
22 Claims
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1. An electrode composition comprising:
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(a) catalytically active particles; (b) a hydrocarbon selected from the group of 1-methoxy-2propanol, 1-ethoxy-2-propanol;
1-methoxy-2-methyl-2-propanol;
1-isopropoxy-2-propanol;
1-propoxy-2-propanol;
2-phenoxy-1-propanol;
2-ethoxy-1-propanol;
2,3-ethoxy-1-propanol;
2-methoxy- 1-propanol;
1-butoxy-2-propanol;
or mixtures thereof; and(c) a binder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fuel cell comprising a membrane and electrode structure wherein the electrode comprises:
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(a) catalytically active particles; and (b) a hydrocarbon having one or more ether or ketone linkages and an alcohol group.
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12. A membrane and electrode structure comprising:
(a) an ion exchange membrane having an electrode composition applied thereto, said electrode composition comprising; (i) catalytically active particles; (ii) a hydrocarbon having one or more ether or ketone linkages and one or more alcohol groups; and (iii) a binder. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
Specification