公开(公告)号：CA3031751A1

公开(公告)日：2018-02-01

申请号：CA3031751

申请日：2017-06-15

Applicant: BASF CORP

Inventor： KARPOV ANDREY ,  FOULON BENJAMIN ,  JI CHUNXIN ,  WASSERMANN KNUT ,  DEEBA MICHEL ,  SUN YIPENG

IPC: B01J35/04 ,  B01J23/40 ,  B01J23/44 ,  B01J35/02 ,  B01J37/00 ,  B01J37/02 ,  F01N3/20

Abstract: The present disclosure provides a three-way conversion (TWC) catalyst composition, and a catalyst article comprising such a catalyst composition suitable for at least partial conversion of gaseous hydrocarbons (HCs), carbon monoxide (CO), and nitrogen oxides (NOx). Generally, the catalyst article includes a catalyst substrate having a plurality of channels adapted for gas flow, each channel having a wall surface and a catalytic coating on the surfaces or inside the pores of the wall. The catalytic coating generally includes a first washcoat with a platinum group metal (PGM) component and a first refractory metal oxide support and a second washcoat having a plurality of palladium-rhodium nanoparticles and a second refractory metal oxide support.