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

Liuding Wang; Hongjing Wu; Zhongyuan Shen; Shaoli Guo; Yiming Wang

doi:10.1016/j.mseb.2012.08.022

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

Liuding Wang, Hongjing Wu, Zhongyuan Shen, Shaoli Guo, Yiming Wang

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

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) ≤ -10 dB) 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.

Original language	English
Pages (from-to)	1649-1654
Number of pages	6
Journal	Materials Science and Engineering: B
Volume	177
Issue number	18
DOIs	https://doi.org/10.1016/j.mseb.2012.08.022
State	Published - 1 Nov 2012

Keywords

Dielectric loss
HCl/SDBS-doped PANI
Microwave absorption
Ordered mesoporous carbon

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title = "Enhanced microwave absorption properties of Ni-doped ordered mesoporous carbon/polyaniline nanocomposites",

abstract = "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) ≤ -10 dB) 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.",

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T1 - Enhanced microwave absorption properties of Ni-doped ordered mesoporous carbon/polyaniline nanocomposites

AU - Wang, Liuding

AU - Wu, Hongjing

AU - Shen, Zhongyuan

AU - Guo, Shaoli

AU - Wang, Yiming

PY - 2012/11/1

Y1 - 2012/11/1

N2 - 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) ≤ -10 dB) 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.

AB - 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) ≤ -10 dB) 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.

KW - Dielectric loss

KW - HCl/SDBS-doped PANI

KW - Microwave absorption

KW - Ordered mesoporous carbon

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SN - 0921-5107

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JO - Materials Science and Engineering: B

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ER -

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

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Keywords

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