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1. (WO2018085959) METHOD FOR PREPARING PRECIOUS METAL ISOLATED ATOMS IN SOLUTION, AND APPLICATIONS THEREOF

Pub. No.:    WO/2018/085959    International Application No.:    PCT/CN2016/000653
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Nov 25 00:59:59 CET 2016
IPC: B01J 35/00
B01J 23/42
B01J 23/44
B01J 23/46
B01J 23/50
B01J 23/52
B01J 31/06
B01J 31/28
Applicants: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
中国科学院大连化学物理研究所
Inventors: ZHANG, Zongchao
张宗超
LIU, Kairui
刘凯瑞
MAO, Jingbo
毛璟博
Title: METHOD FOR PREPARING PRECIOUS METAL ISOLATED ATOMS IN SOLUTION, AND APPLICATIONS THEREOF
Abstract:
A method for preparing precious metal isolated atoms in a solution, and applications thereof. The method comprises: fully mixing a protective agent, a precious metal compound, a reducing agent and a solvent, and carrying out a reaction in a temperature to obtain precious metal isolated atoms, so as to obtain the precious metal isolated atoms capable of stably existing in a solution. The solution containing the precious metal isolated atoms is loaded to a solid medium by means of a dipping method, so that a new material comprising the precious metal isolated atoms and the solid medium can be formed. Alloy materials, catalysts and the like can be prepared by using a single-atom solution. Reduced-state single atoms in a solution phase are prepared. Compared with the synthesis of a metal material in a solution phase in the conventional art, generation of metal nano particles is avoided, and a reduced-state single-atom solution existing in the form of single metal atoms is obtained. Compared with a single-atom material loaded to the surface of a solid, the precious metal in the present invention has the characteristics of a great loading capacity and high stability.