MOF-derived NiFe2S4/Porous carbon composites as electromagnetic wave absorber

Xiaoyi Zhang; Zirui Jia; Feng Zhang; Zihao Xia; Jiaxiao Zou; Zheng Gu; Guanglei Wu

doi:10.1016/j.jcis.2021.11.110

MOF-derived NiFe₂S₄/Porous carbon composites as electromagnetic wave absorber

J Colloid Interface Sci. 2022 Mar 15:610:610-620. doi: 10.1016/j.jcis.2021.11.110. Epub 2021 Nov 20.

Authors

Xiaoyi Zhang¹, Zirui Jia², Feng Zhang³, Zihao Xia⁴, Jiaxiao Zou⁴, Zheng Gu⁵, Guanglei Wu⁶

Affiliations

¹ College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China.
² College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China. Electronic address: jiazirui@qdu.edu.cn.
³ Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China.
⁴ College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China.
⁵ College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China. Electronic address: guzheng596@163.com.
⁶ Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China. Electronic address: wuguanglei@qdu.edu.cn.

PMID: 34848054
DOI: 10.1016/j.jcis.2021.11.110

Abstract

The preparation of strong absorption, thin thickness and wide band electromagnetic wave absorbers has always been the focus of research. In this paper, NiFe₂S₄/PC composites, an electromagnetic wave absorbing material with excellent performance, is prepared by introducing Ni-MOF, Fe and S elements into porous carbon framework. The material has a minimum reflection loss (RL_min) of -51.41 dB and the matching thickness is only 1.8 mm. In addition, the effective absorption bandwidth (EAB) is 4.08 GHz when the thickness is 1.9 mm. The rich interface and good impedance matching characteristics are the main reasons for the excellent absorbing performance of the material. The experimental results show that NiFe₂S₄/PC composites is a reasonable and effective electromagnetic wave absorption material.

Keywords: Electromagnetic wave absorption; Ni-MOF; NiFe(2)S(4); Porous carbon.