US 9,533,285 B2 · Gold cluster catalyst and method for producing same

Abstract

A gold cluster catalyst is capable of promoting/controlling a chemical reaction with high catalytic activity and selectivity. The gold cluster catalyst has a carrier supporting clusters, each of which is an aggregate of a plurality of gold atoms, which can be obtained by providing the carrier supporting a plurality of gold cluster compounds and then processing the gold cluster compounds on the carrier, in which each of the gold cluster compounds is stabilized by an organic ligand and including a predetermined number of gold atoms. In the gold cluster catalyst, each of the clusters may have a particle diameter of 10 nm or less and be formed substantially only of gold atoms.

Claims1

Dependent claims

A method of producing the gold catalyst comprising clusters of gold atoms on a carrier, the method comprising steps of:

mixing a carrier and a plurality of gold cluster compounds wherein each of the gold cluster compound has a predetermined number of gold atoms that are stabilized by an organic ligand;
subjecting the mixture of the carrier and the gold cluster compounds to an oxygen plasma treatment;
and
firing the mixture in air at a temperature ranging of 100° C. to 800° C. to form the gold catalyst comprising the carrier and clusters of gold atoms, wherein the number of the gold atoms in each of the clusters is selected from the group consisting of 11, 13, 55, 101 and 147.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/407,279Filed 7 Jun 2013

Priority

JP 2012-13332912 Jun 2012

Published

US 2015/0151279 A14 Jun 2015

Granted

3 Jan 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification26 codes

B01J 23/52
Silver or gold: gold
B01J 21/066
Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof: zirconium or hafnium; Oxides or hydroxides thereof
B01J 23/10
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00: of rare earths
B01J 23/66
Combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36: silver or gold

Gold cluster catalyst and method for producing same

Life of this patent

Gold cluster catalyst and method for producing same

Life of this patent

Abstract

Claims1