Title:
HONEYCOMB CATALYST
Document Type and Number:
WIPO Patent Application WO/2019/065805
Kind Code:
A1
Abstract:
The present invention relates to a honeycomb catalyst which is obtained by supporting a noble metal on a honeycomb structure in which a plurality of through holes are arranged side by side in the longitudinal direction with partition walls interposed therebetween, said honeycomb catalyst being provided with an inlet-side end surface and an outlet-side end surface. The honeycomb catalyst is characterized in that: the partition walls comprise a base material part formed from an extrusion-moulded body including a ceria-zirconia composite oxide and alumina, and a coat layer which is formed on the surfaces of the base material part, and which includes the noble metal; and the aperture ratio of the inlet-side end surface is greater than that of the outlet-side end surface.
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/JP2018/035853
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:
B01J35/04; B01D53/94; B01J23/63; F01N3/10; F01N3/28
Domestic Patent References:
| WO2011125766A1 | 2011-10-13 |
Foreign References:
| JP2017039069A | 2017-02-23 | |||
| JP2016123890A | 2016-07-11 | |||
| JP2017039069A | 2017-02-23 |
Other References:
See also references of EP 3689458A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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