Design of porous C@Fe3O4 hybrid nanotubes with excellent microwave absorption. Issue 4 (24th December 2015)

• Record Type: Journal Article
• Authors: Meng, Fanbin; Wei, Wei; Chen, Xiangnan; Xu, Xiaoling; Jiang, Man; Jun, Lu; Wang, Yong; Zhou, Zuowan
• Is Part Of: Physical chemistry chemical physics. Volume 18:Issue 4(2016)
• Page Start: 2510
• Page End: 2516
• Publication Date: 2015-12-24
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c5cp06687e
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Porous hybridizing nanotubes with a structure of amorphous carbon interspersed with Fe3 O4 were fabricated and demonstrate excellent microwave absorption. Abstract : An efficient method was developed to fabricate a porous hybridizing nanotubes structure of amorphous carbon interspersed among Fe3 O4 (C@Fe3 O4 ) with a ∼200 nm diameter and ∼70 nm wall thickness. The as-structured porous nanotubes with ferromagnetic behaviour exhibited excellent microwave absorption properties, including a strong ability to attenuate the electromagnetic (EM) wave, and they are also lightweight. Adding only 10 wt% of the as-prepared sample into paraffin can show a maximum reflection loss of −45.0 dB at 6.18 GHz with a sample thickness of 3.4 mm. The absorption mechanism, which results from its porous nanotubes structure, multi-interfaces, dielectric–magnetic integration and geometric effect, is proposed to explain the excellent EM absorption performance. Furthermore, the synthesis strategy presented herein can be expended as a facile approach to synthesizing related carbon-based nanostructures for functional design and applications.