The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2024
Filed:
Jun. 04, 2019
Toyota Motor Europe, Brussels, BE;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite Claude Bernard Lyon 1, Villeurbanne, FR;
Ecole Superieure DE Chimie Physique Electronique DE Lyon, Villeurbanne, FR;
Phuc Hai Nguyen, Brussels, BE;
Marc-Olivier Charlin, Sainte-Sigolene, FR;
Cherif Larabi, Villeurbanne, FR;
Kai Chung Szeto, Villeurbanne, FR;
Mostafa Taoufik, Villeurbanne, FR;
TOYOTA MOTOR EUROPE, Brussels, BE;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE CLAUDE BERNARD LYON 1, Villeurbanne, FR;
ECOLE SUPERIEURE DE CHIMIE PHYSIQUE ELECTRONIQUE DE LYON, Villeurbanne, FR;
Abstract
A process for preparing a catalyst material, includes the steps of: (a) providing a support material having surface hydroxyl (OH) groups, wherein the support material is ceria (CeO), zirconia (ZrO) or a combination of thereof; (b) reacting the support material having surface hydroxyl (OH) groups of step (a) with a precursor containing two transition metal atoms, each chosen independently from the group consisting of: W, Mo, Cr, Ta, Nb, V, Mn; (c) calcining the product obtained in step (b) in order to provide a catalyst material showing dual site surface species containing pairs of transition metal atoms derived from the precursor that are present in oxide form on the support material. Additionally, a catalyst material is obtained by the process set out above, and the catalyst material is used as an ammonia selective catalytic reduction (NH-SCR) catalyst for nitrogen oxides (NOx) reduction.