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US 12,612,704 B2Granted
Catalyst with functionalized support
AssigneePlug Power Inc.
InventorsFan Yang, Qiang Sun
Life of this patent
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Abstract
A catalyst includes a support and a plurality of catalyst particles disposed on the support. The support may include a plurality of metal oxide or doped metal oxide particles and a plurality of organic groups attached to the metal oxide or doped metal oxide particles via diazonium salt reaction. The plurality of organic groups, which may be aromatic groups and/or alkyl groups, may be substituted with functional groups that are positively or negatively charged.
Claims12
A catalyst comprising:
- a support comprising a plurality of support particles, wherein each support particle has a surface and comprises at least one metal oxide, at least one dopant attached to the at least one metal oxide, and at least one organic group attached to the at least one metal oxide via a diazonium salt reaction;
- and
- a plurality of catalyst particles, wherein the catalyst particles are IrCl62− or Ir+.
A water electrolyzer cell comprising:
- a solid polymer proton exchange membrane, the solid polymer proton exchange membrane having first and second opposed faces;
- an anode catalyst layer, the anode catalyst layer being positioned along the first face of the solid polymer proton exchange membrane, said anode catalyst layer comprising:
- a support comprising a plurality of support particles, wherein each support particle has a surface and comprises at least one metal oxide, at least one dopant attached to the at least one metal oxide, and at least one organic group attached to the at least one metal oxide via a diazonium salt reaction;
- and
- a plurality of catalyst particles, wherein the catalyst particles are IrCl62− or Ir+;
- a cathode catalyst layer, the cathode catalyst layer being positioned along the second face of the solid polymer proton exchange membrane;
- a first current collector, the first current collector being positioned along the anode catalyst layer opposite the solid polymer exchange membrane;
- and
- a second current collector, the second current collector being positioned along the cathode catalyst layer opposite the solid polymer exchange membrane.
6 more elements
Dependencies are inferred from the claim text.