Preparation method of carbon-supported metal oxide and/or alloy nanoparticles catalyst using physical vapour deposition
US10850270B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support. The use of the anhydrous polar solvent instead of water can prevent the water-soluble support present at a low concentration in the solution from impeding the support of the nanoparticles on the carbon, thus providing a solution to the problems of environmental pollution, high cost, and complexity encountered in conventional chemical and physical synthetic methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.