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1. WO2011001677 - NOBLE METAL COLLOIDAL PARTICLES, NOBLE METAL COLLOIDAL SOLUTION, AND CATALYST FOR HYDROGEN PEROXIDE DECOMPOSITION

Publication Number WO/2011/001677
Publication Date 06.01.2011
International Application No. PCT/JP2010/004316
International Filing Date 30.06.2010
IPC
B22F 9/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
B01J 23/44 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
44Palladium
B01J 35/02 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
35Catalysts, in general, characterised by their form or physical properties
02Solids
B22F 1/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
02comprising coating of the powder
C02F 1/58 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
58by removing specified dissolved compounds
CPC
B01J 23/44
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
44Palladium
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
B22F 1/0022
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0018Nanometer sized particles
0022Dispersions or suspensions thereof
B22F 1/025
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
02comprising coating of the powder
025Metallic coating
B22F 9/24
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
Applicants
  • 日本板硝子株式会社 Nippon Sheet Glass Company, Limited [JP]/[JP] (AllExceptUS)
  • 吉井哲朗 YOSHII, Tetsuro [JP]/[JP] (UsOnly)
  • 堀口治子 HORIGUCHI, Haruko [JP]/[JP] (UsOnly)
Inventors
  • 吉井哲朗 YOSHII, Tetsuro
  • 堀口治子 HORIGUCHI, Haruko
Agents
  • 鎌田耕一 KAMADA, Koichi
Priority Data
2009-15682501.07.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) NOBLE METAL COLLOIDAL PARTICLES, NOBLE METAL COLLOIDAL SOLUTION, AND CATALYST FOR HYDROGEN PEROXIDE DECOMPOSITION
(FR) PARTICULES COLLOÏDALES DE MÉTAL NOBLE, SOLUTION COLLOÏDALE DE MÉTAL NOBLE ET CATALYSEUR POUR LA DÉCOMPOSITION DE PEROXYDE D'HYDROGÈNE
(JA) 貴金属コロイド粒子及び貴金属コロイド溶液、並びに、過酸化水素分解用触媒
Abstract
(EN)
Disclosed are noble metal colloidal particles comprising Pd colloidal particles and Pt supported on the surfaces of the aforementioned Pd colloidal particles. The noble metal colloidal particles are essentially free of protective colloids, the average diameter of the aforementioned Pd colloidal particles is 7-20 nm, and, expressing the quantity of the aforementioned Pt supported on the surface of the aforementioned Pd colloidal particles as the number of atomic layers of Pt atoms, the quantity of the aforementioned Pt is 0.5-2 atomic layers. Also disclosed is a noble metal colloidal solution that can be obtained by dispersing the noble metal colloidal particles in a solvent.
(FR)
L'invention concerne des particules colloïdales de métal noble comprenant des particules colloïdales de Pd et du Pt supporté sur les surfaces desdites particules colloïdales de Pd. Les particules colloïdales de métal noble sont essentiellement exemptes de colloïdes protecteurs, le diamètre moyen desdites particules colloïdales de Pd est de 7 à 20 nm, exprimant la quantité dudit Pt supporté sur la surface desdites particules colloïdales de Pd en tant que nombre de couches atomiques d'atomes de Pt, la quantité dudit Pt est de 0,5 à 2 couches atomiques. L'invention concerne également une solution colloïdale de métal noble qui peut être obtenue par dispersion des particules colloïdales de métal noble dans un solvant.
(JA)
 本発明の貴金属コロイド粒子は、Pdコロイド粒子と、前記Pdコロイド粒子の表面に担持されたPtとを含む貴金属コロイド粒子であって、実質的に保護コロイドを含まず、前記Pdコロイド粒子の平均粒径が7~20nmであり、前記Pdコロイド粒子の表面に担持された前記Ptの量をPt原子の原子層数で示した場合に、前記Ptの量が0.5~2原子層である。本発明の貴金属コロイド溶液は、このような本発明の貴金属コロイド粒子を溶媒に分散させることによって得ることができる。
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