Ultrasmall Fe3O4 nanoparticles on MXenes with high microwave absorption performance

Affiliation of Author(s):材料科学与技术学院

Journal:MATERIALS LETTERS

Key Words:MXene Nanoparticles Multilayer structure Hydrothermal reaction Microwave absorption

Abstract:Herein, 2D hierarchical composites of nano-sized Fe3O4 particles on MXenes (TiO2/Ti3C2Tx/Fe3O4) were synthesized by using a moderate hydrothermal reaction. Electron microscope techniques indicated that the surfaces of MXenes were densely covered with Fe3O4 nanoparticles of similar to 4.9 nm. Microwave absorption capabilities in terms of the maximum reflection loss (R-L) and effective bandwidth were investigated. Specifically, the TiO2/Ti3C2Tx/Fe(3)O(4)( )exhibited a remarkable absorption performance, with a maximum reflectivity of -57.3 dB at 10.1 GHz and a band range below -10 dB to over 9.1-11.1 GHz at a thickness of 1.9 mm. Therefore, our 2D MXene composites are expected to be promising candidates as ultrathin and lightweight absorbing materials. (C) 2018 Elsevier B.V. All rights reserved.

ISSN No.:0167-577X

Translation or Not:no

Date of Publication:2018-10-15

Co-author:刘沛江,Ng, Vincent Ming Hong,Zhou Jintang,Kong, Ling Bing

Correspondence Author:姚正军,Kong, Ling Bing,Yao Zhengjun

Date of Publication:2018-10-15