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Functional Inorganic Materials and Devices
Light and flexible composite nanofibrous membranes for highefficiency electromagnetic absorption in a broad frequency Ibrahim Abdalla, Ahmed Salim, Miaomiao Zhu, Jianyong Yu, Zhaoling Li, and Bin Ding ACS Appl. Mater. Interfaces, Just Accepted Manuscript • DOI: 10.1021/acsami.8b17514 • Publication Date (Web): 28 Nov 2018 Downloaded from http://pubs.acs.org on December 2, 2018
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ACS Applied Materials & Interfaces
ACS Applied Materials＆ Interfaces
DOI: 10.1002/((please add manuscript number)) Article type: Full Paper
Light and Flexible Composite Nanofibrous Membranes for HighEfficiency Electromagnetic Absorption in a Broad Frequency Ibrahim Abdalla,† Ahmed Salim,† Miaomiao Zhu†, Jianyong Yu,§ Zhaoling Li,*,‡,§ and Bin Ding*,†, ‡,§ †
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,
College of Materials Science and Engineering, Donghua University, Shanghai 201620, China ‡
Key Laboratory of Textile Science and Technology, Ministry of Education, College
of Textiles, Donghua University, Shanghai 201620, China §
Innovation Center for Textile Science and Technology, Donghua University,
Shanghai 200051, China *Correspondence to:
[email protected] (Prof. Z. Li),
[email protected] (Prof. B. Ding).
ABSTRACT With the fast advancement of up-to-date communication technologies, electromagnetic wave (EMW) absorption materials are widely required for various applications. However, it is still a big challenge to produce lightweight, flexible and high efficiency EMW absorption materials in a broad-ranging frequency. Herein, we designed to fabricate the magnetic and dielectric nanofibrous membranes which can be effectively used as EMW absorption materials by facile electrospinning process. The as-fabricated composite carbon nanofibers (CNFs), which combined the components of nickel, cobalt antioxidant nanoparticles and carbon nanotubes, exhibited outstanding 1
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ACS Applied Materials＆ Interfaces
magnetic, dielectric properties and strong absorption ability in a wide frequency range. These nanoparticles encapsulated in CNFs are extremely beneficial to the electrical conductivity of the composites through decreasing the contact loss within the CNFs by formation the metal-metal interfaces. Correspondingly, the RL value of -46.60 dB was reached at 4.88 GHz frequency range with a layer thickness of 5.5 mm for these mechanically light and flexible membranes. The enhanced absorption performance (
