Particle-dispersed complex and solid electrolytic sensor using it
US8043491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2004 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jan 21, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particle-dispersed complex which can serve as a very active electrochemical catalyst used as the sensor electrode of a solid electrolyte sensor such as an oxygen sensor and an exhaust gas sensor that are sensitive even at low temperature, or as the electrode or the like of an electrochemical device or the like such as an electrolysis or a battery or the like by dispersing without aggregating ruthenium system fine particles having a very small particle size into a carbon matrix phase to keep ruthenium system fine particles in a high catalyst active state. The particle-dispersed complex is characterized by comprising fine particles that have a particles size of 5-100 nm, contain ruthenium element as a constituent element, and are dispersed in a matrix mainly containing carbon, and by having conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.