http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8804108-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_058e0be30e00d53858c67167df60aed5 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-124 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-024 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-4073 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-407 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-416 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-12 |
| filingDate | 1987-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b7bf7904e3a83925d1f0c3a4b3420c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_065c92aa08f2900a55aa834fe3be0f5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a255fd1dc9c549ab45b497d70eddf1fc |
| publicationDate | 1988-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-8804108-A3 |
| titleOfInvention | Solid compositions for fuel cells, sensors and catalysts |
| abstract | Solid materials for use as electrolyte (62) for a fuel cell, or for a sensor, or as a catalyst. Representative structures include lanthanum fluoride, lead potassium fluoride, lead bismuth fluoride, lanthanum strontium fluoride, lanthan strontium lithium fluoride, calcium uranium cesium fluoride, PbSnF4, KSn2F5, SrCl2.KCl, La1-pOF1+2p 0.1 < p < 0.3, PbSnFq.PbSnOr 0.0001 < q, r < 1, lanthanumoxyfluoride, SmaNdbFcOd 2.18 < a, b < 9.82, 12 < c < 29.45, 3.25 < d < 12, a+b ~ 12, c+2d ~ 36 and the like. In another aspect, the present invention relates to a composite and a process to obtain it of the formula: A1-yByQO3 having a perovskite or a perovskite-type structure as an electrode catalyst in combination with: AyB1-yF2+y as a discontinuous surface coating solid electrolyte, wherein A is independently selected from lanthanum, cerium, neodymium, praseodymium, and scandium, B is independently selected from strontium, calcium, barium or magnesium, Q is independently selected from nickel, cobalt, iron or manganese, and y is between about 0.0001 and 1, which process comprises: (a) obtaining a particulate of: A1-yByQO3, wherein A, B and y are defined hereinabove having an average size distribution of between about 50 and 200 Angstroms in diameter; (b) reacting the particle of step (a) with a vapor comprising: AyB1-yF2+y, wherein A, B and y are defined hereinabove, at about ambient pressure at between about 0 and 1000°C; for between about 10 and 30 hr. obtain a composite of between about 25 to 1000 microns in thickness; (c) recovering the composite of step (b) having multiple interfaces between the electrode and electrolyte. In another aspect the invention relates to the heating of these solid materials with oxygen and water to obtain higher ionic conductivity. In another aspect the invention relates to the electrochemical doping of oxide ions present by treatment of the electrode-lanthanum fluoride interface at between about 0 and 400°C in an oxygen environment at between about 10-3 and 10-6 amperes per square centimeter for between about 1 and 60 minutes. The invention also includes the use of the fuel cells disclosed to generate electricity. |
| priorityDate | 1986-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.