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1. WO2007037159 - METHOD FOR PRODUCTION OF NOBLE METAL CATALYST

Publication Number WO/2007/037159
Publication Date 05.04.2007
International Application No. PCT/JP2006/318655
International Filing Date 14.09.2006
Chapter 2 Demand Filed 24.07.2007
IPC
B01J 37/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
16Reducing
18with gases containing free hydrogen
B01J 23/42 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38of noble metals
40of the platinum group metals
42Platinum
CPC
B01J 23/38
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
38of noble metals
B01J 23/42
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
38of noble metals
40of the platinum group metals
42Platinum
B01J 35/0013
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
0013Colloids
B01J 35/006
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
002Catalysts characterised by their physical properties
0046Physical properties of the active metal ingredient
006metal crystallite size
B01J 37/0219
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02Impregnation, coating or precipitation
0215Coating
0219the coating containing organic compounds
B01J 37/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
16Reducing
18with gases containing free hydrogen
Applicants
  • トヨタ自動車株式会社 TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 平田 裕人 HIRATA, Hirohito [JP]/[JP] (UsOnly)
Inventors
  • 平田 裕人 HIRATA, Hirohito
Agents
  • 青木 篤 AOKI, Atsushi
Priority Data
2005-28428329.09.2005JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCTION OF NOBLE METAL CATALYST
(FR) PROCEDE DE FABRICATION D’UN CATALYSEUR A BASE DE METAL NOBLE
(JA) 貴金属触媒の製造方法
Abstract
(EN)
Disclosed is a method for synthesis of a noble metal catalyst which has a controlled cluster size and contains no impurity. The method comprises the steps of: homogeneously mixing a solution containing a noble metal with an aqueous solution of a polymeric compound capable of coordinating with the noble metal to form a complex of the noble metal and the polymeric compound; dropwisely adding the aqueous solution containing the complex to water containing microbubbles having hydrogen included therein; agitating the resulting solution to reduce the noble metal and support the noble metal onto a carrier; and baking the carrier-supported noble metal.
(FR)
L’invention concerne un procédé de synthèse d’un catalyseur à base de métal noble, ledit catalyseur présentant des agrégats de taille contrôlée et ne contenant pas d’impuretés. Le procédé comprend les étapes suivantes : mélanger de manière homogène une solution contenant un métal noble avec une solution aqueuse d’un composé polymérique capable de se coordonner avec le métal noble de manière à former un complexe du métal noble et du composé polymérique ; ajouter goutte à goutte la solution aqueuse contenant le complexe à de l’eau contenant des microbulles renfermant de l’hydrogène ; agiter la solution obtenue afin de réduire le métal noble et placer le métal noble sur un support ; et chauffer le métal noble supporté.
(JA)
not available
Latest bibliographic data on file with the International Bureau