Microwave absorption properties and infrared emissivities of ordered mesoporous CTiO2 nanocomposites with crystalline framework

Tao Wang; Jianping He; Jianhua Zhou; Jing Tang; Yunxia Guo; Xiaochun Ding; Shichao Wu; Jianqing Zhao

doi:10.1016/j.jssc.2010.09.028

Microwave absorption properties and infrared emissivities of ordered mesoporous CTiO₂ nanocomposites with crystalline framework

Tao Wang
, Jianping He^*
, Jianhua Zhou
, Jing Tang
, Yunxia Guo
, Xiaochun Ding
, Shichao Wu
, Jianqing Zhao

^*Corresponding author for this work

Nanjing University of Aeronautics and Astronautics

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

60 Scopus citations

Abstract

Ordered mesoporous CTiO₂ nanocomposites with crystalline framework were prepared by the evaporation-induced triconstituent co-assembly method. The products were characterized by XRD, TEM, N₂ adsorptiondesorption and TG. Their microwave absorption properties were investigated by mixing the product and epoxy resin. It is found that the peak with minimum reflection loss value moves to lower frequencies and the ordered mesoporous CTiO₂ nanocomposite possesses an excellent microwave absorbing property with the maximum reflection loss of -25.4 dB and the bandwidth lower than -10 dB is 6.6 GHz. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism is discussed in detail. The mesoporous CTiO₂ nanocomposites also exhibit a lower infrared emissivity in the wavelength from 8 to 14 μm than that of TiO ₂-free powder.

Original language	English
Pages (from-to)	2797-2804
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	183
Issue number	12
DOIs	https://doi.org/10.1016/j.jssc.2010.09.028
State	Published - Dec 2010
Externally published	Yes

Keywords

Infrared emissivity
Mesoporous nanocomposite
Microwave absorption
Solvent-evaporation induced self-assembly

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10.1016/j.jssc.2010.09.028

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title = "Microwave absorption properties and infrared emissivities of ordered mesoporous CTiO2 nanocomposites with crystalline framework",

abstract = "Ordered mesoporous CTiO2 nanocomposites with crystalline framework were prepared by the evaporation-induced triconstituent co-assembly method. The products were characterized by XRD, TEM, N2 adsorptiondesorption and TG. Their microwave absorption properties were investigated by mixing the product and epoxy resin. It is found that the peak with minimum reflection loss value moves to lower frequencies and the ordered mesoporous CTiO2 nanocomposite possesses an excellent microwave absorbing property with the maximum reflection loss of -25.4 dB and the bandwidth lower than -10 dB is 6.6 GHz. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism is discussed in detail. The mesoporous CTiO2 nanocomposites also exhibit a lower infrared emissivity in the wavelength from 8 to 14 μm than that of TiO 2-free powder.",

keywords = "Infrared emissivity, Mesoporous nanocomposite, Microwave absorption, Solvent-evaporation induced self-assembly",

author = "Tao Wang and Jianping He and Jianhua Zhou and Jing Tang and Yunxia Guo and Xiaochun Ding and Shichao Wu and Jianqing Zhao",

year = "2010",

month = dec,

doi = "10.1016/j.jssc.2010.09.028",

language = "英语",

volume = "183",

pages = "2797--2804",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

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}

TY - JOUR

T1 - Microwave absorption properties and infrared emissivities of ordered mesoporous CTiO2 nanocomposites with crystalline framework

AU - Wang, Tao

AU - He, Jianping

AU - Zhou, Jianhua

AU - Tang, Jing

AU - Guo, Yunxia

AU - Ding, Xiaochun

AU - Wu, Shichao

AU - Zhao, Jianqing

PY - 2010/12

Y1 - 2010/12

N2 - Ordered mesoporous CTiO2 nanocomposites with crystalline framework were prepared by the evaporation-induced triconstituent co-assembly method. The products were characterized by XRD, TEM, N2 adsorptiondesorption and TG. Their microwave absorption properties were investigated by mixing the product and epoxy resin. It is found that the peak with minimum reflection loss value moves to lower frequencies and the ordered mesoporous CTiO2 nanocomposite possesses an excellent microwave absorbing property with the maximum reflection loss of -25.4 dB and the bandwidth lower than -10 dB is 6.6 GHz. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism is discussed in detail. The mesoporous CTiO2 nanocomposites also exhibit a lower infrared emissivity in the wavelength from 8 to 14 μm than that of TiO 2-free powder.

AB - Ordered mesoporous CTiO2 nanocomposites with crystalline framework were prepared by the evaporation-induced triconstituent co-assembly method. The products were characterized by XRD, TEM, N2 adsorptiondesorption and TG. Their microwave absorption properties were investigated by mixing the product and epoxy resin. It is found that the peak with minimum reflection loss value moves to lower frequencies and the ordered mesoporous CTiO2 nanocomposite possesses an excellent microwave absorbing property with the maximum reflection loss of -25.4 dB and the bandwidth lower than -10 dB is 6.6 GHz. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism is discussed in detail. The mesoporous CTiO2 nanocomposites also exhibit a lower infrared emissivity in the wavelength from 8 to 14 μm than that of TiO 2-free powder.

KW - Infrared emissivity

KW - Mesoporous nanocomposite

KW - Microwave absorption

KW - Solvent-evaporation induced self-assembly

UR - https://www.scopus.com/pages/publications/78649872263

U2 - 10.1016/j.jssc.2010.09.028

DO - 10.1016/j.jssc.2010.09.028

M3 - 文章

AN - SCOPUS:78649872263

SN - 0022-4596

VL - 183

SP - 2797

EP - 2804

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 12

ER -

Microwave absorption properties and infrared emissivities of ordered mesoporous CTiO₂ nanocomposites with crystalline framework

Abstract

Keywords

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