Oxygen storage/release material and exhaust gas purifying catalyst comprising the same
US8357626B2 · kind B2 · utility
0Cited by
6References
2Claims
0Family size
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Key dates
| Filing date | May 19, 2008 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Aug 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is provided an oxygen storage/release material using a rare earth oxysulfate or oxysulfide, which has a high oxygen storage/release capacity even at lower temperatures. The oxygen storage/release material of the present invention comprises a compound consisting of Pr2O2SO4 and/or Pr2O2S and at least one metal selected from the group consisting of Pt, Rh and Fe supported thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.