Ionomer/catalyst interface
AssigneeIndiana University Research and Technology Corporation
InventorsJian Xie, Le Xin
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Abstract
A catalyst comprising a functionalized substrate having a first charged functional group, a metal dispersed on the substrate, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof, and an ionomer are disclosed. Methods manufacturing a functionalized catalyst comprising catalyzing a substrate with a metal, functionalizing the catalyzed substrate with a first charged functional group, and add an ionomer to the loaded functionalized catalyst are also disclosed. Also, methods comprising catalyzing a substrate with a metal, functionalizing the substrate with a first charged functional group, and adding an ionomer to the loaded functionalized catalyst are disclosed.
Claims23
A method manufacturing a functionalized catalyst comprising at least one of a nanoparticle or a single-layer membrane electrode assembly, the method comprising:
- catalyzing a substrate with a metal oxide to form a catalyst comprising a metal, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof to provide a loaded catalyst;
- functionalizing the catalyzed substrate with a first charged functional group by covalently grafting the first charged functional group to the catalyzed substrate;
- adding an ionomer to the loaded functionalized catalyst;
- and
- modifying a surface charge of the substrate with a diazonium reaction.
A method of manufacturing a functionalized catalyst comprising at least one of a nanoparticle or a single-layer membrane electrode assembly, the method comprising:
- catalyzing a substrate with a metal oxide to form a catalyst comprising a metal, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof to provide a loaded catalyst;
- functionalizing the catalyzed substrate with a first charged functional group;
- adding an ionomer to the loaded functionalized catalyst;
- and
- modifying a surface charge of the substrate with a diazonium reaction.
A method manufacturing a functionalized catalyst comprising at least one of a nanoparticle or a single-layer membrane electrode assembly, the method comprising:
- catalyzing a substrate with a metal oxide to form a catalyst comprising a metal, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof to provide a loaded catalyst;
- functionalizing the catalyzed substrate with a first charged functional group;
- and
- adding an ionomer to the loaded functionalized catalyst;
- and
- modifying a hydrophobicity of the substrate with a diazonium reaction.
Dependencies are inferred from the claim text.