http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H08173810-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa6e4421d9e1159b6012d9bf702be572 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 |
| filingDate | 1994-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c1824d543291de58b49b8fbeaa5c5bb |
| publicationDate | 1996-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H08173810-A |
| titleOfInvention | Method for producing platinum alloy catalyst |
| abstract | (57) [Summary] (Modified) [Purpose] In the production of platinum alloy catalysts, to improve productivity and workability, and to prevent redelution due to oxidation of plated heavy metals. [Constitution] Platinum-containing dinitrodiamine platinum nitric acid solution is diluted with pure water to form an aqueous solution, to which a powder carrier is added and mixed and dispersed, and then alcohol having a concentration of 6 to 15% is added and mixed. , Heating under reflux and holding at the boiling point for several hours to reduce and support the platinum fine particles, and after allowing to cool, the powdery carrier on which the platinum fine particles are supported is collected by filtration, Next, this is dried at 80 to 150 ° C to make a platinum-supported catalyst, and then this platinum-supported catalyst is dispersed in hot water to form a catalyst slurry, while a mixed solution of a heavy metal salt, a chelating agent and a reducing agent. From the slurry into the plating bath for electroless plating, then the platinum catalyst supported on the powdery carrier is plated with a heavy metal is filtered in an inert gas atmosphere and then washed with hot water at 70 ° C. or higher, It is dried, and then heated in the required atmosphere for alloying treatment. |
| priorityDate | 1994-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.