Method for preparing proton-conducting particles capable of catalyzing the reduction of oxygen or the oxidation of hydrogen
US9421531B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 5, 2012 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Feb 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2008/1095
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for preparing particles includes a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, the particles being functionalized by polymers including at least one repeating unit bearing at least one proton-conducting group, and the particles being covalently bonded to a carbon material. The method includes the following consecutive steps: a) a step of contacting particles, comprising a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, with a compound that is an initiator for ATRP polymerization, the compound comprising at least one group capable of being grafted onto the surface of the particles, whereby particles, onto which a radical of the initiator compound is grafted, are obtained; and b) a step of contacting the particles obtained in a) with at least one monomer having at least one proton-conducting group, whereby the polymerization of the monomer from the above-mentioned radicals occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.