Patent · US Active

Low temperature nitrogen oxide adsorber

US11439952B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Elena Mueller · Pfungstadt, DE
Kris Driesen · Olen, BE

Key dates

Filing date	Nov 8, 2019
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Nov 8, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a composite metal oxide which comprises 80 to 97 wt %, in relation to the weight of the composite metal oxide, of one or more oxides of cerium and 3 to 20 wt %, in relation to the composite metal oxide of a metal oxide comprising tin oxide (SnO2) and lanthanum oxide (La2O3) and/or aluminum oxide (Al2O3), a composite material for the storage of nitrogen oxides which comprises such composite metal oxide and palladium, as well as an exhaust gas system containing said composite material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.