WO2007037159A1 - 貴金属触媒の製造方法 - Google Patents
貴金属触媒の製造方法 Download PDFInfo
- Publication number
- WO2007037159A1 WO2007037159A1 PCT/JP2006/318655 JP2006318655W WO2007037159A1 WO 2007037159 A1 WO2007037159 A1 WO 2007037159A1 JP 2006318655 W JP2006318655 W JP 2006318655W WO 2007037159 A1 WO2007037159 A1 WO 2007037159A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- noble metal
- solution
- polymer compound
- complex
- aqueous solution
- Prior art date
Links
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 63
- 239000003054 catalyst Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000243 solution Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims description 25
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 1
- 229920000768 polyamine Polymers 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 claims 1
- 239000004800 polyvinyl chloride Substances 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 17
- 239000003575 carbonaceous material Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 239000010970 precious metal Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 239000002923 metal particle Substances 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- -1 alkene hydride Chemical class 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- BWLBGMIXKSTLSX-UHFFFAOYSA-N 2-hydroxyisobutyric acid Chemical compound CC(C)(O)C(O)=O BWLBGMIXKSTLSX-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000238558 Eucarida Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000288906 Primates Species 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002127 nanobelt Substances 0.000 description 1
- 239000002116 nanohorn Substances 0.000 description 1
- KIDPOJWGQRZHFM-UHFFFAOYSA-N platinum;hydrate Chemical compound O.[Pt] KIDPOJWGQRZHFM-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
- B01J37/18—Reducing with gases containing free hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
Definitions
- the present invention relates to a method for producing a noble metal catalyst by M, and more particularly, to a method for producing a noble metal catalyst whose cluster size is controlled.
- Exhaust gases emitted from internal combustion engines such as automobile engines include monoxide: carbon (CO), hydrocarbon (HC), nitrogen oxide (NO x ), etc.
- These toxic substances are generally composed of catalysts composed mainly of noble metals such as platinum (P t), rhodium (R h), paradium (P d), and iridium (I r). Is purified by an exhaust gas purifying catalyst supported on an oxide carrier such as Almina.
- a catalyst component noble metal is supported on an oxide support.
- a solution of a noble metal compound modified with a nitrate group or an amine group is used, and the oxide support is impregnated into an oxide support. This is done by dispersing a noble metal compound on the surface of the substrate and then firing to remove the nitrate group and the like.
- a material having a high specific surface area such as alpha alumina is used for the oxide carrier so as to give the exhaust gas a high contact area with the catalyst component.
- the precious metal remains in the pores of the carbon material,' under conditions where the carbon material is burned off ', the noble metal is oxidized Since it is rapidly supported on the material support, it can be substantially supported on the oxide support ⁇ in the class size within the pores of the carbon material.
- the rice brazing method it is necessary to introduce a metal into the pores of the hollow carbon material: the material, and this process has the problem that productivity is poor.
- a noble metal-containing solution and an aqueous solution of a polymer compound capable of coordinating with the noble metal are uniformly mixed to form a complex of the noble metal and the polymer compound.
- An aqueous solution containing this complex ' is dropped into water containing microbubbles containing hydrogen inside and mixed to reduce the noble metal :, supported on a carrier', and then calcined.
- a method for producing a noble metal catalyst is provided. Brief description of the drawings
- FIG. 1 is a photograph instead of a drawing showing the size of platinum particles obtained by the method of the present invention.
- Fig. 2 is a photograph showing the size of the platinum particles obtained by the conventional method, instead of the drawing.
- FIG. 3 is a photograph showing a shape of platinum particles obtained by the method of the present invention in place of the drawing.
- Fig. 4 is a ⁇ ⁇ ⁇ photograph instead of a drawing showing the shape of platinum particles obtained by a conventional method. The best form to implement.
- a solution containing a noble genus and an aqueous solution of a polymer compound capable of coordinating the noble metal and metal are mixed and mixed uniformly. Complexes of molecular compounds are formed.
- a noble you can fist platinum, silver, gold; silver, iridium, and ruthenium.
- the noble metal-containing solution can be obtained by dissolving the water-soluble and organic solvent-soluble salt and / or complex of this noble metal in an organic solvent for a long time.
- an organic solvent acetonate, acedon, etc. can be used.
- the concentration of precious metal in this shell metal solution is 1 X l (T 4 mol / L ⁇ 1 X 10 " 3 mol
- This high molecular compound that can coordinate with the shell metal is a compound having N, ⁇ .. ⁇ C, C CMataho NH 2 : Two-rupee PU don, polyvinyl alcohol, polyacrylic glycol
- Polynes can be used. It preferably the concentration of the polymer compound in the aqueous solution of the polymer compound is 1 XI 0 "4 mol / L ⁇ 1 'X 10- 3 niol / L in Monomayu two Tsu Bok terms.
- the molar ratio is 1: 5.
- Microbubble-containing water refers to water having a diameter of 50 m or less of 50% or more of the number of bubbles present in water.
- This microbubble-containing water can be prepared using a general microbubble generator.
- the In the present invention is characterized by using water containing a microphone, a mouth bubble, and hydrogen containing bubbles in the bubbles.
- This precious metal particle and polymer p complex obtained are loaded on a carrier using, for example, ordinary evaporation drying: solid method or the like.
- a carrier fermented products such as alumina, siliga and diconia; and complex oxides such as siri force-almina, zirconia ceria and alumina ceria zirconia can be used.
- a complex of a noble metal and a polymer compound is reduced by hydrogen in the micronoble to prevent agglomeration of the noble metals and prevent the formation of fine, spherical spherical noble metal clusters.
- Example 1 that can be obtained and prevents contamination by impurities
- FIG. 1 A T E M photograph of platinum particles obtained in Example 1 and Comparative Example ⁇ is shown in FIG. 1 and FIG.
- FIGS. 3 and 4 show enlarged photographs of one particle in Example 1 and Comparative Example 1.
- the Pt particles obtained in Example 1 have a smaller particle diameter than the Pt particles obtained in Comparative Example 1, and the shape of these particles is close to a sphere. It was.
- the cluster size of the noble metal can be controlled by forming a complex by forming a complex of the noble metal and the polymer compound, and further, the reduction for reducing the noble metal ion.
- the cluster size of the noble metal can be controlled by forming a complex by forming a complex of the noble metal and the polymer compound, and further, the reduction for reducing the noble metal ion.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/991,746 US20080268159A1 (en) | 2005-09-29 | 2006-09-14 | Production Method of Precious Metal Catalyst |
DE112006002573T DE112006002573T5 (de) | 2005-09-29 | 2006-09-14 | Herstellungsverfahren eines Edelmetallkatalysators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005284283A JP3969444B2 (ja) | 2005-09-29 | 2005-09-29 | 貴金属触媒の製造方法 |
JP2005-284283 | 2005-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007037159A1 true WO2007037159A1 (ja) | 2007-04-05 |
Family
ID=37899588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/318655 WO2007037159A1 (ja) | 2005-09-29 | 2006-09-14 | 貴金属触媒の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080268159A1 (ja) |
JP (1) | JP3969444B2 (ja) |
CN (1) | CN101300076A (ja) |
DE (1) | DE112006002573T5 (ja) |
WO (1) | WO2007037159A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110033353A1 (en) | 2009-08-05 | 2011-02-10 | Basf Corporation | Preparation of Diesel Oxidation Catalyst Via Deposition of Colloidal Nanoparticles |
CA2813127A1 (en) * | 2010-09-29 | 2012-04-05 | Basf Se | Polymer assisted synthesis of supported metal catalyst |
CN102912331A (zh) * | 2012-10-28 | 2013-02-06 | 西北大学 | 一种在载体上负载单质银的方法 |
CN105148908B (zh) * | 2015-08-17 | 2021-03-23 | 中自环保科技股份有限公司 | 一种负载型贵金属催化剂的制备方法以及其应用 |
JP2017206750A (ja) * | 2016-05-20 | 2017-11-24 | Hack Japan ホールディングス株式会社 | 金属ナノ粒子の製造方法 |
US20220297095A1 (en) * | 2021-03-19 | 2022-09-22 | Johnson Matthey Public Limited Company | Preparation of supported metal nanoparticles using polyamine for three-way catalysis application |
CN114160195A (zh) * | 2021-12-24 | 2022-03-11 | 兰州大学 | 一种水溶性贵金属团簇催化剂的制备方法及其应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55102429A (en) * | 1979-02-01 | 1980-08-05 | Sumitomo Metal Ind Ltd | Generating method for minute bubble in liquid |
JPH09253490A (ja) * | 1996-03-25 | 1997-09-30 | Toyota Central Res & Dev Lab Inc | 排ガス浄化用触媒及びその製造方法 |
JP2002305001A (ja) * | 2001-04-06 | 2002-10-18 | Matsushita Electric Ind Co Ltd | 燃料電池用電極触媒およびその製造方法 |
JP2004344859A (ja) * | 2003-04-28 | 2004-12-09 | Joho Kagaku Kenkyusho:Kk | 水素ガス及び酸素ガスの減圧・加圧溶解方式のコロイド溶液による自動酸化・還元処理システム |
JP2005230753A (ja) * | 2004-02-23 | 2005-09-02 | Techno Network Shikoku Co Ltd | 液中プラズマ反応装置、液中プラズマによる反応方法および結晶合成方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6168775B1 (en) * | 1998-08-26 | 2001-01-02 | Hydrocarbon Technologies, Inc. | Catalyst and process for direct catalystic production of hydrogen peroxide, (H2O2) |
US6534661B1 (en) * | 2000-12-28 | 2003-03-18 | Hydrocarbon Technologies, Inc. | Integrated process and dual-function catalyst for olefin epoxidation |
JP2003181288A (ja) | 2001-12-13 | 2003-07-02 | Toyota Motor Corp | 貴金属触媒の製造方法 |
US7582586B2 (en) * | 2006-08-24 | 2009-09-01 | Toyota Motor Corporation | Supported catalysts with controlled metal cluster size |
-
2005
- 2005-09-29 JP JP2005284283A patent/JP3969444B2/ja not_active Expired - Fee Related
-
2006
- 2006-09-14 US US11/991,746 patent/US20080268159A1/en not_active Abandoned
- 2006-09-14 CN CNA2006800413722A patent/CN101300076A/zh active Pending
- 2006-09-14 DE DE112006002573T patent/DE112006002573T5/de not_active Withdrawn
- 2006-09-14 WO PCT/JP2006/318655 patent/WO2007037159A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55102429A (en) * | 1979-02-01 | 1980-08-05 | Sumitomo Metal Ind Ltd | Generating method for minute bubble in liquid |
JPH09253490A (ja) * | 1996-03-25 | 1997-09-30 | Toyota Central Res & Dev Lab Inc | 排ガス浄化用触媒及びその製造方法 |
JP2002305001A (ja) * | 2001-04-06 | 2002-10-18 | Matsushita Electric Ind Co Ltd | 燃料電池用電極触媒およびその製造方法 |
JP2004344859A (ja) * | 2003-04-28 | 2004-12-09 | Joho Kagaku Kenkyusho:Kk | 水素ガス及び酸素ガスの減圧・加圧溶解方式のコロイド溶液による自動酸化・還元処理システム |
JP2005230753A (ja) * | 2004-02-23 | 2005-09-02 | Techno Network Shikoku Co Ltd | 液中プラズマ反応装置、液中プラズマによる反応方法および結晶合成方法 |
Non-Patent Citations (1)
Title |
---|
TORIGOE K. ET AL.: "Kin Colloid no Kagakuteki Sakuseiho", KAGAKU KOGYO, vol. 49, 1998, pages 269 - 277, XP003011356 * |
Also Published As
Publication number | Publication date |
---|---|
US20080268159A1 (en) | 2008-10-30 |
CN101300076A (zh) | 2008-11-05 |
JP3969444B2 (ja) | 2007-09-05 |
DE112006002573T5 (de) | 2008-08-14 |
JP2007090257A (ja) | 2007-04-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6259186B2 (ja) | 内燃機関から放出される排気を処理するための触媒の製造方法、この製造方法によって得ることができる触媒、この触媒の使用方法 | |
EP1954393B1 (en) | Highly dispersed metal calatysts | |
JP3912377B2 (ja) | 排ガス浄化用触媒粉末の製造方法 | |
JP4547935B2 (ja) | 排ガス浄化用触媒、排ガス浄化触媒、及び触媒の製造方法 | |
JP5581314B2 (ja) | 排ガス浄化用触媒 | |
WO2007037159A1 (ja) | 貴金属触媒の製造方法 | |
WO2005092494A1 (ja) | 触媒 | |
JP2005262201A (ja) | 排ガス浄化用触媒およびその製造方法 | |
JP2009091238A (ja) | 酸化セリウムウオッシュコート | |
WO2005063391A1 (en) | Heat-resistive catalyst and production method thereof | |
JP4883162B2 (ja) | Co又はhc浄化用の排ガス浄化触媒 | |
EP1911514A1 (en) | Catalyst for exhaust gas purification | |
JP5612050B2 (ja) | 金属粒子担持触媒の製造方法 | |
WO2017163916A1 (ja) | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 | |
WO2017073527A1 (ja) | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 | |
JP2007000795A (ja) | 排気ガス浄化触媒及びその製造方法 | |
JP2005125282A (ja) | 触媒粒子およびその製造方法 | |
JP2003246624A (ja) | パイロクロア型酸化物の製造方法 | |
JP5825439B2 (ja) | 排ガス浄化用触媒及びその製造方法 | |
JP6851225B2 (ja) | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 | |
JP4075412B2 (ja) | パティキュレート燃焼触媒及びその製造方法 | |
JP4779271B2 (ja) | 触媒 | |
JP2005199114A (ja) | 触媒製造方法及びこれに用いる触媒調製用材料 | |
CN106944094B (zh) | 废气净化用催化剂 | |
WO2023063354A1 (ja) | 担持触媒の作製方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680041372.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 11991746 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120060025732 Country of ref document: DE |
|
RET | De translation (de og part 6b) |
Ref document number: 112006002573 Country of ref document: DE Date of ref document: 20080814 Kind code of ref document: P |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06810347 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |