JPH0199432U - - Google Patents
Info
- Publication number
- JPH0199432U JPH0199432U JP19500687U JP19500687U JPH0199432U JP H0199432 U JPH0199432 U JP H0199432U JP 19500687 U JP19500687 U JP 19500687U JP 19500687 U JP19500687 U JP 19500687U JP H0199432 U JPH0199432 U JP H0199432U
- Authority
- JP
- Japan
- Prior art keywords
- cerium
- advance
- added
- activated alumina
- oxide powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 4
- 239000000843 powder Substances 0.000 claims 3
- 229910052684 Cerium Inorganic materials 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 2
- 229910052746 lanthanum Inorganic materials 0.000 claims 2
- 229910052727 yttrium Inorganic materials 0.000 claims 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052763 palladium Inorganic materials 0.000 claims 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims 1
- 229910052703 rhodium Inorganic materials 0.000 claims 1
- 239000010948 rhodium Substances 0.000 claims 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
Description
第１図イは本考案の触媒の全体斜視図、第１図
ロは第１図Ａ部の拡大図、第２図および第３図は
本考案の触媒の性能を示すグラフ、第４図は触媒
のコンバータへ装置状態を示す断面図、第５図は
触媒製造時に用いるカバーの説明図である。
１……触媒、２……担体、３……第１のコート
層、４……第２のコート層。
Figure 1A is an overall perspective view of the catalyst of the present invention, Figure 1B is an enlarged view of section A in Figure 1, Figures 2 and 3 are graphs showing the performance of the catalyst of the present invention, and Figure 4 is FIG. 5 is a cross-sectional view showing the state of the apparatus for converting the catalyst, and FIG. 5 is an explanatory view of the cover used during catalyst manufacture. 1... Catalyst, 2... Support, 3... First coat layer, 4... Second coat layer.
Claims (1)
ｎ１−ｙＰｄｙＯ３（ＭはＹ又はＬａ，０．２≦
ｘ≦０．４，０．０３≦ｙ≦０．０７）で示され
るペロブスカイト型複合酸化物粉末と、あらかじ
めセリウムを添加した活性アルミナ及び、高比表
面積セリア粉末とよりなる第１のコート層３を形
成し、しかる後、触媒活性成分であるパラジウム
、ロジウムの内、少なくとも１種を担持する、次
にＭ′１−ｘＢａｘＦｅ１−ｙＰｄｙＯ３（Ｍ′
はＹ又はＬａ，０．２≦ｘ≦０．４，０．０３≦
ｙ≦０．０７）で示されるペロブスカイト型複合
酸化物粉末と、あらかじめセリウム又はジルコニ
ウムを添加した活性アルミナ及び、希土類金属酸
化物粉末とより成る第２のコート層４を形成し、
しかる後、触媒活性成分であるパラジウム、ロジ
ウムの内少なくとも１種を担持する事を特徴とす
る排ガス浄化用触媒。 M 1-x Pr x M on the surface of the monolith carrier base material 2
n 1-y Pd y O 3 (M is Y or La, 0.2≦
A first coat layer 3 consisting of perovskite-type composite oxide powder represented by x≦0.4, 0.03≦y≦0.07), activated alumina to which cerium has been added in advance, and high specific surface area ceria powder. Then, M' 1-x Bax Fe 1-y Pd y O 3 (M'
is Y or La, 0.2≦x≦0.4, 0.03≦
y≦0.07), activated alumina to which cerium or zirconium has been added in advance, and rare earth metal oxide powder.
After that, an exhaust gas purifying catalyst is produced, which is characterized by supporting at least one of palladium and rhodium, which are catalytically active components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19500687U JPH0199432U (en) | 1987-12-23 | 1987-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19500687U JPH0199432U (en) | 1987-12-23 | 1987-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0199432U true JPH0199432U (en) | 1989-07-04 |
Family
ID=31485703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19500687U Pending JPH0199432U (en) | 1987-12-23 | 1987-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0199432U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007216099A (en) * | 2006-02-14 | 2007-08-30 | Honda Motor Co Ltd | Exhaust gas purification oxidation catalyst |
| JP2007275738A (en) * | 2006-04-05 | 2007-10-25 | Honda Motor Co Ltd | Oxidation catalyst for exhaust gas purification |
| JP2008100184A (en) * | 2006-10-20 | 2008-05-01 | Honda Motor Co Ltd | Oxidation catalyst for exhaust gas purification |
| JP2010201395A (en) * | 2009-03-05 | 2010-09-16 | Nissan Motor Co Ltd | Oxidation catalyst and method for manufacturing oxidation catalyst |
-
1987
- 1987-12-23 JP JP19500687U patent/JPH0199432U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007216099A (en) * | 2006-02-14 | 2007-08-30 | Honda Motor Co Ltd | Exhaust gas purification oxidation catalyst |
| JP2007275738A (en) * | 2006-04-05 | 2007-10-25 | Honda Motor Co Ltd | Oxidation catalyst for exhaust gas purification |
| JP2008100184A (en) * | 2006-10-20 | 2008-05-01 | Honda Motor Co Ltd | Oxidation catalyst for exhaust gas purification |
| JP2010201395A (en) * | 2009-03-05 | 2010-09-16 | Nissan Motor Co Ltd | Oxidation catalyst and method for manufacturing oxidation catalyst |
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