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1. (WO2018163052) CATALYST COMBINING PLATINUM GROUP METAL WITH COPPER-ALUMINA SPINEL

Pub. No.:    WO/2018/163052    International Application No.:    PCT/IB2018/051409
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Mar 06 00:59:59 CET 2018
IPC: B01J 23/40
B01J 37/02
B01J 23/72
B01J 21/04
B01J 35/02
B01J 35/00
B01J 37/10
F01N 3/20
Applicants: BASF CORPORATION
Inventors: ILINICH, Oleg
HOKE, Jeffrey B.
Title: CATALYST COMBINING PLATINUM GROUP METAL WITH COPPER-ALUMINA SPINEL
Abstract:
An oxidation catalyst composition is provided, the composition including at least one platinum group metal impregnated onto a porous alumina material, wherein the porous alumina material comprises a copper-alumina spinel phase. At least a portion of the copper-alumina spinel phase can be proximal to, or in direct contact with, at least one platinum group metal crystallite, such as a crystallite having a size of about 1 nm or greater. The close proximity of the copper-alumina spinel phase to the platinum group metal crystallite is believed to provide synergistic enhancement of carbon monoxide oxidation. Methods of making and using the catalyst composition are also provided, as well as emission treatment systems comprising a catalyst article coated with the catalyst composition.