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1. (WO2018201715) GRAPHENE AND FERROFERRIC OXIDE@GOLD COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

Pub. No.:    WO/2018/201715    International Application No.:    PCT/CN2017/114624
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Wed Dec 06 00:59:59 CET 2017
IPC: B22F 9/24
Applicants: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
广州特种承压设备检测研究院
Inventors: HUANG, Guojia
黄国家
LI, Maodong
李茂东
YANG, Bo
杨波
XIN, Mingliang
辛明亮
YIN, Zongjie
尹宗杰
ZHANG, Shuanghong
张双红
LI, Shiping
李仕平
ZHAI, Wei
翟伟
WANG, Zhigang
王志刚
LI, Peishan
黎佩珊
Title: GRAPHENE AND FERROFERRIC OXIDE@GOLD COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF
Abstract:
A preparation method for use with a graphene and ferroferric oxide@gold composite material, and a product and application thereof. A preparation process for the graphene and ferroferric oxide@gold composite material is as follows: first, constructing an azide thiol-modified ferroferric oxide@gold complex; activating graphene oxide by means of dichlorosulfoxide and then reacting with propargyl alcohol to form alkynyl graphene oxide; next catalyzing the two under a nitrogen atmosphere such that a click reaction occurs between an alkynyl group and an azide group, thereby obtaining the composite material. Reaction conditions of the preparation method for use with the graphene and ferroferric oxide@gold composite material are mild, and the preparation method is simple and reliable. The graphene and ferroferric oxide@gold composite material is connected by means of a covalent bond such that the system is stable, and has the features of good magnetic and microwave absorption performance, good plasma resonance absorption and attenuation of X-rays. The present invention may be applied in nuclear magnetic imaging, microwave thermoacoustic imaging, photoacoustic imaging and X-ray imaging.