http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112371993-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_54dc5610f382e13c9384b0b07a4d7d82 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B1-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-24 |
| filingDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85cf04446a3bb07a643326c4b33c3a66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55df14e1aae1b19285d186cdc648cfa6 |
| publicationDate | 2021-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112371993-A |
| titleOfInvention | A kind of preparation method of silver powder |
| abstract | The application discloses a preparation method of silver powder, comprising the following steps: preparing an aqueous solution of silver salt with a concentration of 0.02-0.05mol/L, adding 0.1-0.3g/L sodium dodecyl alcohol ether sulfate to prepare a mixed solution; Dissolve EDTA in the aqueous sodium hydroxide solution, adjust the pH to be 12-14, add sodium dithionite to make a reducing solution, the amount of EDTA is 0.8-1 times the mole number of silver salt used in step S1, and the amount of sodium hydrosulfite is used in step S1 2-3 times the mole number of silver salt, adding the reducing solution to the aforementioned mixed solution, ultrasonically reacting under stirring and at room temperature, then adding the ascorbic acid aqueous solution of pH 10-12, adding dropwise the silver salt aqueous solution of 0.2-0.5mol/L , reacted under stirring and 30-40 ℃, the reactant was washed, dried, and sieved to obtain the product. The silver powder prepared by the method has controllable particle size, narrow particle size distribution, simple process and low cost, and is especially suitable for preparing the front silver paste of solar cells. |
| priorityDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.