http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113148982-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3bac1cdb3a17b1a03e68c81f8438f869 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B2202-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B2202-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B2202-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-162 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 |
| filingDate | 2021-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c63a81700a3f9745e150f614d5308f05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c757f97464b5a410525cf2a5b672141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89ecf1f6ecbcbe20d6bcb42254186778 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ba8e8ee97847fa9d6565689e303af67 |
| publicationDate | 2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113148982-A |
| titleOfInvention | A kind of preparation method of high-purity double-walled carbon nanotubes |
| abstract | The invention belongs to the technical field of carbon nanomaterial preparation, and in particular relates to a preparation method of high-purity double-walled carbon nanotubes. The method can effectively control the composition and density distribution of active metals and rare earth metals in layered multi-metal hydroxides. The carbon nanotubes are mainly double-walled. The amphoteric metal oxides in the residual catalyst are activated by hydrofluoric acid, and then the amphoteric metal oxides are completely removed by sodium hydroxide, and the active metals and other residual metal oxides are removed by concentrated hydrochloric acid. Double-walled carbon nanotubes with high purity and high degree of graphitization were obtained. The beneficial effects of the present invention are as follows: the present invention prepares high-quality double-walled carbon nanotubes with a diameter of 2-4 nm, the purity is higher than 93%, and the Raman G/D peak ratio is higher than 10. The preparation process is simple and feasible, and the cost of raw materials is low, which is of significance for promoting the basic research and pilot production of high-quality double-walled carbon nanotubes. |
| priorityDate | 2021-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.