Antioxidant for fuel cells, membrane electrode assembly including the same and method for preparing antioxidant
US12080927B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 1, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Feb 13, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MxOk) and a complex metal oxide (MxNyOj, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M(x-n)+, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.