Title:
HONEYCOMB CATALYST
Document Type and Number:
WIPO Patent Application WO/2019/065798
Kind Code:
A1
Abstract:
The present invention pertains to a honeycomb catalyst in which a precious metal is supported on a honeycomb structure in which a plurality of through-holes are arranged in the lengthwise direction and separated by a partition, the honeycomb catalyst being characterized in that: the honeycomb structure contains a ceria-zirconia composite oxide and alumina; and the cerium concentration on the surface of the partition is lower than the cerium concentration in the center of the partition in the thickness direction thereof.
Inventors:
GOTO SHINNOSUKE (JP)
TOJO TAKUMI (JP)
YOSHIDA TAKERU (JP)
SUZUKI HIROMASA (JP)
TOJO TAKUMI (JP)
YOSHIDA TAKERU (JP)
SUZUKI HIROMASA (JP)
Application Number:
PCT/JP2018/035836
Publication Date:
April 04, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
IBIDEN CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
International Classes:
B01J23/63; B01D53/94; B01J35/04; F01N3/28
Foreign References:
| JP2017039069A | 2017-02-23 | |||
| JPH0760117A | 1995-03-07 | |||
| JP2009011937A | 2009-01-22 | |||
| JP2010127210A | 2010-06-10 | |||
| JP2006205050A | 2006-08-10 | |||
| JP2015085241A | 2015-05-07 | |||
| JP2016505380A | 2016-02-25 | |||
| JPH10296085A | 1998-11-10 | |||
| JP2004066069A | 2004-03-04 | |||
| JP2017039069A | 2017-02-23 |
Other References:
See also references of EP 3689453A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
Download PDF: