Exhaust gas purifying catalyst, exhaust gas purifying monolith catalyst, and method for manufacturing exhaust gas purifying catalyst
US9101914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purifying catalyst having a high purifying ability even if noble metal is not used as an essential component, an exhaust gas purifying monolith catalyst, and a method for manufacturing an exhaust gas purifying catalyst, are provided. The exhaust gas purifying catalyst includes an oxide having an oxygen storage and release capacity, and an oxide represented by the following formula (1) supported on the oxide having the oxygen storage and release capacity,LaxM1−xM′O3−δ (1)(wherein La represents lanthanum, M represents at least one element selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca), M′ represents at least one element selected from the group consisting of iron (Fe), cobalt (Co), nickel (Ni) and manganese (Mn), δ represents an oxygen deficient amount, and x and δ fulfill conditions represented by 0<x≦1 and 0≦δ≦1, respectively).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.