MEMBRANE ELECTRODE ARRANGEMENT WITH BIFUNCTIONAL CATALYSATORS FOR FUEL CELLS AND ELECTROLYSERS
DE102024124476A1Pending Publication Date: 2026-01-08GM GLOBAL TECHNOLOGY OPERATIONS LLC
Patent Information
- Application Number
- DE102024124476
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-01
- Filing Date
- 2024-08-28
- Publication Date
- 2026-01-08
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Abstract
A membrane electrode assembly (MEA) for a fuel cell and electrolyzer is provided. The MEA comprises a first electrode layer, a second electrode layer opposite the first, a polymer electrolyte membrane extending between the first and second electrode layers, and a gas diffusion layer (GDL) adjacent to the first and second electrode layers. A bifunctional catalyst comprising a noble metal supported on a metal oxide compound is arranged within a polymer electrolyte membrane, the first and second electrodes, and / or the GDLs. The noble metal comprises Pt and / or Pd. The metal oxide compound comprises CeO₂, CexZryO₄, MnO₂, CeEO, MnEOx, and / or CoEOx. The ratio of noble metal to metal oxide compound is 1 to 80 percent by weight.
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Citation Information
Patent Citations
CN000001881667A
Improved fuel cell lifespan through oxide-borne precious metals in a membrane
DE102011118236A1
membrane-electrode arrangement
DE112015002354T5