Methanol oxidation catalyst
US8211825B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | May 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A methanol oxidation catalyst comprises a material of composition:PtxMzTau in which Pt is platinum, Ta is tantalum, M is an element includes at least one selected from the group consisting of V (vanadium), W (tungsten), Ni (nickel) and Mo (molybdenum), x is 40 to 98 at. %, z is 1.5 to 55 at. %, and u is 0.5 to 40 at. %. To maximize catalytic activity the material is preferably in the form of nanoparticles. The values of x, z and u are selected such that the element exhibits X-ray photoelectron spectroscopy peaks derived from an oxygen bond and a metal bond in which a peak area derived from the oxygen bond is twice or less of a peak area derived from the metal bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.