Title:
PREPARATION METHOD FOR RGO/AG COMPOSITE NANO MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/072633
Kind Code:
A1
Abstract:
A new method for synthesizing a silver-coated graphene (RGO/Ag) composite nanomaterial, characterized in that aminosilane and glutaraldehyde are used to functionalize the surface of a graphene material, and in an alcohol-water system, the functionalized graphene material reacts with a silver ammonia solution on the basis of in-situ reduction and autocatalysis principles to form a composite material. The present method does not require product purification, is fast and intuitive, and is a new synthesizing method that has simple operations, a fast speed and high yield. The prepared highly dispersed RGO/Ag composite nanomaterial has good dispersibility. The conductive silver paste prepared thereby can reduce the amount of silver powder used by 50-70%, which greatly saves costs while maintaining conductive efficiency. In addition, the RGO/Ag composite nanomaterial synthesizing method is clean, environmentally friendly, and suitable for widespread application.
Inventors:
HE HONGBO (CN)
Application Number:
PCT/CN2019/111247
Publication Date:
April 22, 2021
Filing Date:
October 15, 2019
Export Citation:
Assignee:
ZHUJI YILIAN ZHONGCHUANG ENTERPRISE MAN SERVICE CO LTD (CN)
International Classes:
C01B32/184
Domestic Patent References:
| WO2016044749A1 | 2016-03-24 |
Foreign References:
| CN107445145A | 2017-12-08 | |||
| CN107519869A | 2017-12-29 | |||
| CN108517688A | 2018-09-11 | |||
| CN107502138A | 2017-12-22 | |||
| CN103627139A | 2014-03-12 |
Download PDF: