Lightweight carbon foam from coal liquefaction residue with broad-band microwave absorbing capability

被引：87

作者：

Wang, Shuai ^{[1
]}

Xiao, Nan ^{[1
]}

Zhou, Ying ^{[1
]}

Ling, Zheng ^{[1
]}

Li, Mingyu ^{[1
]}

Qiu, Jieshan ^{[1
]}

机构：

[1] Dalian Univ Technol, Liaoning Key Lab Energy Mat & Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

CARBON | 2016年 / 105卷

基金：

中国国家自然科学基金;

关键词：

ABSORPTION PROPERTIES; GRAPHENE FOAM; NANOPARTICLES; COMPOSITES;

D O I：

10.1016/j.carbon.2016.04.040

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A three-dimensional (3D) structure carbon foam for microwave absorption is synthesized by a facile template method using coal liquefaction residue (CLR) as carbon source. The results have shown that the sample made under optimized conditions has exhibited a broad effective absorption bandwidth up to 5.8 GHz in a range of 2-18 GHz with a reflection loss <= -10 dB. The magnetic Fe species derived from CLR are homogeneously dispersed in the 3D scaffold of carbon foam, which increase the magnetic loss, interface polarization relaxation and the synergetic effect between the magnetic Fe species and the dielectric carbon foam matrix. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：224 / 226

页数：3

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