Highly Stable Fuel Cell Membranes and Methods of Making Them
AssigneeGore Enterprise Holdings, Inc.
InventorsVincent A. Durante, William E. Delaney
Life of this patent
Estimating the term…
Abstract
A solid polymer electrolyte membrane having (a) an ion exchange material and (b) dispersed in said ion exchange material, a hydrogen peroxide decomposition catalyst bound to a carbon particle support, wherein the hydrogen peroxide decomposition catalyst comprises (i) polyvinylphosphonic acid and (ii) cerium.
Claims75
A solid polymer electrolyte membrane comprising (a) an ion exchange material and (b) dispersed in said ion exchange material, a hydrogen peroxide decomposition catalyst bound to a carbon particle support, wherein the hydrogen peroxide decomposition catalyst comprises (i) polyvinylphosphonic acid and (ii) cerium.
A solid polymer electrolyte membrane comprising an (a) ion exchange material;
- (b) a peroxide decomposition catalyst, wherein said peroxide decomposition catalyst comprises (i) an organic polymer comprising at least two carbon atoms and at least one moiety comprising phosphorous, and (ii) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states.
A compound for increasing the durability of a membrane comprising (a) an organic polymer comprising a monomer with at least two carbon atoms and at least one moiety comprising phosphorous, and (b) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states.
A composition of matter comprising the reaction product of PVPA, cerium (III) nitrate hexahydrate, and water.
A composition of matter comprising the reaction product of carbon black, PVPA, Ce(NO3)36H2O, and water.
A compound for increasing the durability of a membrane comprising (a) dihydrogen phosphonate, and (b) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states.
An electrode for use in a solid polymer electrolyte fuel cell, said electrode comprising (a) an ion exchange material;
- (b) an organic polymer comprising a monomer with at least two carbon atoms and at least one moiety comprising phosphorous, (c) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states, and (d) a catalyst for either fuel oxidation or oxygen reduction.
A catalyst coated membrane comprising
- (a) at least one electrode capable of oxidizing a fuel or reducing an oxidant
- (b) a solid polymer electrolyte attached to said electrode wherein said solid polymer electrolyte or electrode comprises an (1) ion exchange material and (2) a peroxide decomposition catalyst, wherein said peroxide decomposition catalyst comprises an organic polymer comprising at least two carbon atoms and at least one a moiety comprising phosphorous, and (ii) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states.
A fuel cell comprising:
- (A) an anode comprising a catalyst for oxidizing fuel,
- (B) a cathode comprising a catalyst for reducing an oxidant, and
- (C) a solid polymer electrolyte;
- wherein at least one of said solid polymer electrolyte, said anode and said cathode comprises a peroxide decomposition catalyst comprising an organic polymer comprising at least two carbon atoms and a moiety comprising phosphorous, and (ii) a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states.
- (D) a fuel supplied to said anode;
- (E) an oxidant supplied to said cathode.
A method to make a compound comprising the steps of:
- (1) preparing an organic polymer comprising at least two carbon atoms in solution;
- (2) adding a salt of a metal comprising a transition metal with multiple oxidation states or a lanthanide metal with multiple oxidation states,
- (3) precipitating said compound.
Dependencies are inferred from the claim text.