Enhanced microwave absorption properties of Ni-doped ordered mesoporous carbon/polyaniline nanocomposites

被引：37

作者：

Wang, Liuding ^{[1
]}

Wu, Hongjing ^{[1
]}

Shen, Zhongyuan ^{[1
]}

Guo, Shaoli ^{[1
]}

Wang, Yiming ^{[1
]}

机构：

[1] NW Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2012年 / 177卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Ordered mesoporous carbon; HCl/SDBS-doped PANI; Microwave absorption; Dielectric loss; ELECTROMAGNETIC-WAVE ABSORPTION; COMPOSITES; ABSORBERS; DESIGN; PERFORMANCE; FRAMEWORK; POWDER; BAND;

D O I：

10.1016/j.mseb.2012.08.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose and demonstrate a new scheme to improve microwave absorption property through polyaniline (PANI)-functionalized Ni-doped ordered mesoporous carbon (OMC) by in situ polymerization method. The polymer-functionalized nanocomposites, embedding polyaniline within ordered mesoporous carbon, exhibit strong and broadband microwave absorption due to its better dielectric loss characteristic. OMC-Ni0.15/PANI exhibits an effective absorption bandwidth (i.e., reflection loss (RL) <= -10dB) of 4.7 GHz and an absorption peak of -51 dB at 9.0 GHz. The absorption peak intensity and position can be tuned by controlling the thickness of the coating. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1649 / 1654

页数：6

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