Tokyo Metropolitan University

National Institute of Advanced Industrial Science and Technology

Tomoki Akita

Masatake Haruta

Jiahui Huang

Atsushi Ogata

Takashi Takei

Tamao Ishida

Yue Yu

Ayako Taketoshi

Hyun-Ha Kim

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.

Gold cluster catalyst and method for producing same

Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or mesoporous titanosilicate support, which is produced by an alkaline treatment of titanosilicalite or mesoporous titanosilicate with aqueous solution of NaOH, KOH or CsOH.

Method for producing propylene oxide

Growing community of inventors

Oaska, Japan

Tomoki Akita