http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110697698-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-198 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-198 |
| filingDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110697698-B |
| titleOfInvention | Graphene oxide and preparation method thereof |
| abstract | The application relates to the field of graphene, in particular to graphene oxide and a preparation method thereof. The preparation method of the graphene oxide comprises the following steps: reacting graphite, acid solution and hydrogen peroxide at 75-85 ℃ for 25-45 minutes to obtain acid intercalated graphite; mixing concentrated sulfuric acid and acid intercalated graphite, adding a strong oxidant for reaction, and removing acid to obtain graphene oxide; wherein the acid solution comprises concentrated sulfuric acid and phosphoric acid, or the acid solution comprises concentrated sulfuric acid and phosphorus pentoxide. According to the preparation method of the graphene oxide, intercalation and oxidation are carried out separately, graphite sheets are peeled off in the intercalation step, and the final graphene oxide single sheet can be peeled off under a softer mechanical acting force, so that the graphene oxide with a larger radial size is obtained; maximum is millimeter-sized graphene oxide; the single layer rate is higher. According to the preparation method of the graphene oxide, nitrate ions are not introduced in the whole intercalation and oxidation processes, and the risk of explosion is reduced. |
| priorityDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.