http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111372893-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0857 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0835 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-0842 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-101 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N3-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J32-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-63 |
| filingDate | 2018-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111372893-B |
| titleOfInvention | Oxygen absorbing and releasing material, catalyst, exhaust gas purification system and exhaust gas treatment method |
| abstract | The problem to be solved by the present invention is to provide an oxygen absorbing and releasing material composed of a ceria/zirconia composite oxide having improved HC and NOx purification performance and a three-way catalyst capable of reducing NOx emissions. Furthermore, in order to solve this problem, the present invention provides an oxygen absorbing and releasing material, which is a ceria/zirconia-based composite oxide, contains Gd 2 O 3 in a range of 0.1 mol% to less than 20 mol%, and has an ion conductivity between 400°C is above 2×10 ‑5 S/cm. Further, in addition to the above, the molar ratio of cerium to zirconium is 0.2 or more and 0.6 or less in terms of cerium/(cerium+zirconium), the oxygen absorption and release rate (OSC rate) Δt 50 is 20.0 seconds or more, or the oxygen absorbing and releasing rate is obtained. Oxygen absorbing and desorbing materials characterized by an amount (OSC amount) of 300 μmol‑O 2 /g or more. Furthermore, by applying the above-mentioned oxygen absorbing and releasing material to a catalyst, it is possible to contribute to the purification of exhaust gas which changes momentarily depending on the running state, and to obtain a catalyst having a higher performance of purifying harmful components than conventional precious metals. In particular, an automobile exhaust gas purification system excellent in CO, NOx, and HC purification capabilities can be obtained. |
| priorityDate | 2017-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.