一锅水热法制备用于微波吸收的FeO修饰石墨烯

One-Pot Hydrothermal Preparation of FeO Decorated Graphene for Microwave Absorption.

作者信息

Du Zhonghe, Chen Xibang, Zhang Youwei, Que Xueyan, Liu Pinggui, Zhang Xiuqin, Ma Hui-Ling, Zhai Maolin

机构信息

Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.

Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

出版信息

Materials (Basel). 2020 Jul 9;13(14):3065. doi: 10.3390/ma13143065.

DOI:10.3390/ma13143065

PMID:32660050

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7412019/

Abstract

FeO decorated graphene was synthesized for electromagnetic wave absorption via a facile one-pot hydrothermal approach. The structure and morphology of the as-prepared nanomaterials were systematically investigated. The graphene oxide (GO) was reduced and FeO nanoparticles were evenly decorated on the surface of reduced graphene oxide (rGO) nanosheets. The average particle size of FeO nanoparticles is about 15.3 nm. The as-prepared rGO-FeO nanocomposites exhibited a good microwave absorption performance because of the combination of graphene and magnetic FeO. When the thicknesses are 1.6 mm and 6.5 mm, the reflection loss (RL) values are up to -34.4 dB and -37.5 dB, respectively. The effective bandwidths are 3.8 and 1.9 GHz.

摘要

通过简便的一锅水热法合成了用于电磁波吸收的FeO修饰石墨烯。对所制备的纳米材料的结构和形貌进行了系统研究。氧化石墨烯（GO）被还原，FeO纳米颗粒均匀地修饰在还原氧化石墨烯（rGO）纳米片的表面。FeO纳米颗粒的平均粒径约为15.3 nm。所制备的rGO-FeO纳米复合材料由于石墨烯和磁性FeO的结合而表现出良好的微波吸收性能。当厚度分别为1.6 mm和6.5 mm时，反射损耗（RL）值分别高达-34.4 dB和-37.5 dB。有效带宽分别为3.8 GHz和1.9 GHz。