Chemical synthesis for graphene sheets greater than 1 μm in length
US8728578B2 · kind B2 · utility
0Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | May 12, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2204/32
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A method for preparing a graphene sheet greater than 1 μm in length that includes: combining graphitic oxide with a solvent having a ratio of from about 50:50 to about 80:20 deionized water and ethanol to form a graphitic oxide solution; mixing a solution of NaBH4 and deionized water and the graphitic oxide solution to form a mixture having a concentration of from 10 mmolar to 20 mmolar NaBH4; depositing the mixture on a substrate to form a sheet; and heating the mixture at a temperature of from 25° C. to 85° C. for from 3 to 30 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.