http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105186010-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-8814 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-8842 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-88 |
| filingDate | 2015-09-08^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-09-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-09-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105186010-B |
| titleOfInvention | Preparation method of a nitrogen-doped carbon-oxygen reduction catalyst with a hierarchical porous structure |
| abstract | The invention provides a preparation method of a nitrogen-doped carbon-oxygen reduction catalyst with a hierarchical porous structure, which belongs to the technical field of fuel cells. The present invention first adopts the freeze-drying method to prepare the eutectic salt with three-dimensional macroporous structure, and then uses the eutectic salt as a template, doped with a nitrogen-containing precursor, ammonium persulfate as an oxidant, and iron salt as a cocatalyst. The polymerization method initiates oxidative polymerization of the nitrogen-containing precursor on the surface of the eutectic salt, and finally performs high-temperature pyrolysis to remove the eutectic salt. The nitrogen-doped carbon-oxygen reduction catalyst with a hierarchical porous structure prepared by the present invention can effectively avoid the pyrolysis loss, structural collapse and sintering of the nitrogen-containing polymer precursor in the high-temperature carbonization process, and improve the catalyst yield and nitrogen doping efficiency. And can produce a large number of micropores, mesopores and macropores, improve the mass transfer efficiency of oxygen and water. The method of the invention is simple and easy, the production cost is low, and the prepared catalyst has excellent oxygen reduction catalytic activity, and can replace the existing commercial Pt/C catalyst. |
| priorityDate | 2015-09-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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