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Novel ionomer/catalyst interface

A technology of catalysts and ionomers, applied in the field of functionalized catalyst supports, which can solve the problems of conventional substrate limitations and limited capacity

Pending Publication Date: 2019-08-02
INDIANA UNIV RES & TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, conventional substrates are significantly constrained due to surface migration, agglomeration and corrosion, and in some cases limit the ability to use conventional fuel cells, such as in future space exploration missions and electric vehicles

Method used

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  • Novel ionomer/catalyst interface
  • Novel ionomer/catalyst interface
  • Novel ionomer/catalyst interface

Examples

Experimental program
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Embodiment

[0073] carbon matrix

[0074] As mentioned above, the substrate is not particularly limited. In various embodiments, chemical groups are covalently grafted onto the surface of carbon black (CB), graphene (G), graphene tubes (GT), graphite and nanographite particles and carbon particles (as spacers) . In various embodiments, grafting of chemical groups is performed to aid in tuning the surface properties of the carbon matrix through diazonium reactions.

[0075] In the diazonium reaction, the functional group "Y" passes through the diazonium salt XN 2 C 6 h 4 -Y (for example, Y is a sulfonic acid or sulfonate, SO 3 - m + , but in various aspects or embodiments may be a carboxylic acid or carboxylate, COO - m + ; tertiary amine, NR 3 + x - ; and polymer groups, PBI, PEO, PPO, PANI, etc.) attached to the graphene (G) / carbon black surface.

[0076] Functionalization based on the diazonium reaction was found to be a simple and economical way to convert pure G / carbon in...

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Abstract

Provided is a catalyst comprising a functionalized substrate having a first charged functional group, a metal dispersed on the substrate, and an ionomer, 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. 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.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application 62 / 404,055, filed October 4, 2016, entitled "NOVEL IONOMER / CATALYST INTERFACE," which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to functionalized catalyst supports including but not limited to carbon black, nanographite, graphene and metal oxides combined with metal particles and ionomers. More specifically, the present invention relates to the use of hydrophilic and hydrophobic functionalized catalyst supports (i.e., carbonaceous materials and metal oxides) to construct catalyst / ionomer interfaces, wherein metal catalyst particles and ionomers Structure combined. Background technique [0004] A catalyst can be understood as a substance that initiates a chemical reaction or changes the rate of a chemical reaction and can be recovered in substantially unchanged form and amount at the end of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/40B01J23/42H01M8/22
CPCB01J23/40B01J23/42H01M4/8892H01M4/9075H01M4/925H01M4/926B01J23/44B01J23/464B01J23/466B01J23/468H01M4/96H01M8/103
Inventor J.谢L.辛
Owner INDIANA UNIV RES & TECH CORP
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