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Microwave Absorption Properties of Zn1-xCoxO Nanofibers Prepared by Electrospinning
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Xinkun WANG, Fang ZHAO, Jianjiang WANG
Journal of the Chinese Ceramic Society | 2020, 48(2) : 161 - 168
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Journal of the Chinese Ceramic Society | 2020, 48(2): 161-168
Microwave Absorption Properties of Zn1-xCoxO Nanofibers Prepared by Electrospinning
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Xinkun WANG, Fang ZHAO, Jianjiang WANG
Affiliations
  • Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China

    • WANG Xinkun (1993-), male, Master candidate. E-mail:

About Author:

WANG Xinkun (1993-), male, Master candidate. E-mail:

Published: 2020-02-20 doi: 10.14062/j.issn.0454-5648.20190390
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Polyvinyl/pyrrolidone (PVP)/Zn1-xCoxO(0-0.08) composite nanofibers were fabricated by a sol-gel process and an electrospinning technique. After calcination at 600 ℃, Zn1-xCoxO(0-0.08) nanofibers were obtained. The phase composition, morphology, structure and electromagnetic properties of the samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and vector network analysis. The results show that Zn1-xCoxO nanofibers obtained by calcination at 600 ℃ for 2 h are a hexagonal wurtzite structure with the fiber diameter of approximately 100 nm. Compared to pure ZnO nanofibers, the microwave absorption properties of Zn1-xCoxO nanofibers are enhanced, and the main absorbing mechanism is dielectric loss. The absorption effect of the sample is optimized when the matching layer thickness is 2 mm and x=0.04. At the frequency of 8.2 GHz, the minimum reflectivity is -30.6 dB, the absorption band below -10 dB is 6.7-9.7 GHz, and the bandwidth reaches 3 GHz. The absorbing properties of the fibers increase, compared to those of Zn0.96Co0.04O powder sample.

polyvinyl/pyrrolidone  /  zinc oxide  /  cobalt doping  /  nanofibers  /  electrospinning  /  electromagnetic parameters  /  microwave absorption
汪心坤, 赵芳, 王建江. Zn1-xCoxO纳米纤维的电纺制备及其吸波性能. 硅酸盐学报, 2020 , 48 (2) : 161 -168 . DOI: 10.14062/j.issn.0454-5648.20190390
Xinkun WANG, Fang ZHAO, Jianjiang WANG. Microwave Absorption Properties of Zn1-xCoxO Nanofibers Prepared by Electrospinning[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (2) : 161 -168 . DOI: 10.14062/j.issn.0454-5648.20190390
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Year 2020 volume 48 Issue 2
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Article Info
doi: 10.14062/j.issn.0454-5648.20190390
  • Receive Date：2019-06-05
  • Online Date：2026-10-29
  • Published：2020-02-20
Article Data
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History
  • Received：2019-06-05
  • Revised：2019-07-19
Funding
Affiliations
    Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China

Corresponding:

ZHAO Fang (1982-), famale, Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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