Exhaust gas treatment catalyst
US9101916B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalyst system suitable especially for the removal of CO compounds, comprising or consisting of an oxide, preferably of fluorite crystalline structure, conforming to the following molar formulation:Ce1−uMyAzDvO2−x,wherein Ce is cerium, A represents at least one element possessing a plurality of oxidation states and selected from Ti, Ga, In, V, Cr, Mn, Fe, Sn, Co, Ni, Cu, M represents at least one element selected from Gd, Y, Sc, Sm, Nd, Pr, Zn, D represents at least one element other than A and selected from Pt, Pd, Rh, Ru, Cu, Fe, Ag, and Au, u is between 0.05 and 0.45, y is between 0.01 and 0.4, Z is greater than 0 and less than 0.4, v is between 0.001 and 0.4, and x is greater than 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.