Title:
排ガス浄化用触媒担体、排ガス浄化触媒、及び排ガス浄化触媒ハニカム構造体
Document Type and Number:
Japanese Patent JP5307644
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a carrier for an exhaust gas cleaning catalyst and an exhaust gas cleaning catalyst which show the low content of Tand Tand excellent light-off performance and high temperature durability as DOC for cleaning a diesel engine exhaust gas, as well as a honeycomb structure of the exhaust gas cleaning catalyst, and also, a carrier for an exhaust gas cleaning catalyst and an exhaust gas cleaning catalyst which can reduce the use quantity of a precious metal beyond the known level, and shows higher cleaning performance than ever known and excellent high temperature durability as a three-way catalyst for cleaning an exhaust gas from a gasoline engine, as well as a honeycomb structure of the exhaust gas cleaning catalyst.SOLUTION: The carrier for the exhaust gas cleaning catalyst and the exhaust gas cleaning catalyst using the carrier, are composed of composite oxide particles which contain alkali earth metals M, Fe and Ti and also, includes a plurality of crystal phases. In addition, Ti/(Fe+Ti) is 0.01 to 0.45. Also, the honeycomb structure of the exhaust gas cleaning catalyst is provided.
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Inventors:
Kenichi Uemura
Toru Nagai
Kimura Masao
Wataru Ito
Noriko Yamada
Shingo Katayama
Toru Nagai
Kimura Masao
Wataru Ito
Noriko Yamada
Shingo Katayama
Application Number:
JP2009143517A
Publication Date:
October 02, 2013
Filing Date:
June 16, 2009
Export Citation:
Assignee:
Nippon Steel & Sumikin Materials Co., Ltd.
International Classes:
B01J23/89; B01D53/94; B01J35/04; F01N3/10
Domestic Patent References:
| JP2007160149A | ||||
| JP11151440A | ||||
| JP5184929A | ||||
| JP2009142789A |
Foreign References:
| WO2006095557A1 |
Attorney, Agent or Firm:
Koichi Washida
Kazuto Iinuma
Kazuto Iinuma