Method for producing graphene by chemical exfoliation
US9145302B2 · kind B2 · utility
6Cited by
1References
17Claims
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Key dates
| Filing date | Jul 29, 2011 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2204/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are methods for preparing pure graphene using chemical bonding between graphite oxide and metal oxide nanoparticles, and graphene and nanoparticles having a quasi metal oxide-graphene core-shell prepared therefrom. The disclosed methods for preparing graphene allow chemical bonding and separation through a simple acid treatment process using inexpensive materials. Also, because the reaction can be carried out at low temperature, the processing cost is low. And, pure graphene with few impurities can be prepared quickly in large scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.