Interface polarization strategy to prepare Sn/SnO                         2                         @C absorber with tunable core compositions and broader frequency absorption properties

Haitao Wang; Yan Zheng; Wenyu Cui; Yanchun Sun; Dongxing Zhang

doi:10.1016/j.apsusc.2018.06.062

Interface polarization strategy to prepare Sn/SnO ₂ @C absorber with tunable core compositions and broader frequency absorption properties

Haitao Wang
, Yan Zheng
, Wenyu Cui
, Yanchun Sun^*
, Dongxing Zhang

^*Corresponding author for this work

Ministry of Agriculture of the People's Republic of China
Harbin Fiberglass Reinforced Plastics Institute
Harbin University of Commerce
Harbin Institute of Technology

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

17 Scopus citations

Abstract

Core–shell shaped composites with tunable core compositions have been successfully synthesized by a two-step method. Initial, SnO ₂ @C was prepared by fixing the hollow SnO ₂ nanospheres into the void of amorphous carbon. Followed by another annealing treatment, SnO ₂ was gradually reduced to metallic Sn in a mixed H ₂ /N ₂ atmosphere and leaded to Sn/SnO ₂ or Sn cores. Subsequently, the original SnO ₂ hollow nanospheres in the core was collapsed and transformed from clusters to nanoparticles. The electromagnetic absorption properties were significant improved for the binary composite (Sn/SnO ₂ @C) as compared to SnO ₂ hollow sphere, SnO ₂ @C and Sn@C products. The effective absorption frequency width was up to 7.1 GHz with a matched thickness of 1.5 mm. The excellent electromagnetic absorption mechanism was attributed to the balanced impedance matching and attenuation ability. Besides, the existed Sn/SnO ₂ interface plays a key role on the attenuation intensity since the boosted interface polarization intensity.

Original language	English
Pages (from-to)	1057-1062
Number of pages	6
Journal	Applied Surface Science
Volume	455
DOIs	https://doi.org/10.1016/j.apsusc.2018.06.062
State	Published - 15 Oct 2018
Externally published	Yes

Keywords

Bandwidth frequency
Core–shell
Hollow nano-sphere
Interface polarization
Sn/SnO @C
Tunable core composition

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10.1016/j.apsusc.2018.06.062

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Wang, H., Zheng, Y., Cui, W., Sun, Y., & Zhang, D. (2018). Interface polarization strategy to prepare Sn/SnO ₂ @C absorber with tunable core compositions and broader frequency absorption properties Applied Surface Science, 455, 1057-1062. https://doi.org/10.1016/j.apsusc.2018.06.062

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title = " Interface polarization strategy to prepare Sn/SnO 2 @C absorber with tunable core compositions and broader frequency absorption properties ",

abstract = " Core–shell shaped composites with tunable core compositions have been successfully synthesized by a two-step method. Initial, SnO 2 @C was prepared by fixing the hollow SnO 2 nanospheres into the void of amorphous carbon. Followed by another annealing treatment, SnO 2 was gradually reduced to metallic Sn in a mixed H 2 /N 2 atmosphere and leaded to Sn/SnO 2 or Sn cores. Subsequently, the original SnO 2 hollow nanospheres in the core was collapsed and transformed from clusters to nanoparticles. The electromagnetic absorption properties were significant improved for the binary composite (Sn/SnO 2 @C) as compared to SnO 2 hollow sphere, SnO 2 @C and Sn@C products. The effective absorption frequency width was up to 7.1 GHz with a matched thickness of 1.5 mm. The excellent electromagnetic absorption mechanism was attributed to the balanced impedance matching and attenuation ability. Besides, the existed Sn/SnO 2 interface plays a key role on the attenuation intensity since the boosted interface polarization intensity.",

keywords = "Bandwidth frequency, Core–shell, Hollow nano-sphere, Interface polarization, Sn/SnO @C, Tunable core composition",

author = "Haitao Wang and Yan Zheng and Wenyu Cui and Yanchun Sun and Dongxing Zhang",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = oct,

day = "15",

doi = "10.1016/j.apsusc.2018.06.062",

language = "英语",

volume = "455",

pages = "1057--1062",

journal = "Applied Surface Science",

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Wang, H, Zheng, Y, Cui, W, Sun, Y & Zhang, D 2018, ' Interface polarization strategy to prepare Sn/SnO ₂ @C absorber with tunable core compositions and broader frequency absorption properties ', Applied Surface Science, vol. 455, pp. 1057-1062. https://doi.org/10.1016/j.apsusc.2018.06.062

Interface polarization strategy to prepare Sn/SnO ₂ @C absorber with tunable core compositions and broader frequency absorption properties . / Wang, Haitao; Zheng, Yan; Cui, Wenyu et al.
In: Applied Surface Science, Vol. 455, 15.10.2018, p. 1057-1062.

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

TY - JOUR

T1 - Interface polarization strategy to prepare Sn/SnO 2 @C absorber with tunable core compositions and broader frequency absorption properties

AU - Wang, Haitao

AU - Zheng, Yan

AU - Cui, Wenyu

AU - Sun, Yanchun

AU - Zhang, Dongxing

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Core–shell shaped composites with tunable core compositions have been successfully synthesized by a two-step method. Initial, SnO 2 @C was prepared by fixing the hollow SnO 2 nanospheres into the void of amorphous carbon. Followed by another annealing treatment, SnO 2 was gradually reduced to metallic Sn in a mixed H 2 /N 2 atmosphere and leaded to Sn/SnO 2 or Sn cores. Subsequently, the original SnO 2 hollow nanospheres in the core was collapsed and transformed from clusters to nanoparticles. The electromagnetic absorption properties were significant improved for the binary composite (Sn/SnO 2 @C) as compared to SnO 2 hollow sphere, SnO 2 @C and Sn@C products. The effective absorption frequency width was up to 7.1 GHz with a matched thickness of 1.5 mm. The excellent electromagnetic absorption mechanism was attributed to the balanced impedance matching and attenuation ability. Besides, the existed Sn/SnO 2 interface plays a key role on the attenuation intensity since the boosted interface polarization intensity.

AB - Core–shell shaped composites with tunable core compositions have been successfully synthesized by a two-step method. Initial, SnO 2 @C was prepared by fixing the hollow SnO 2 nanospheres into the void of amorphous carbon. Followed by another annealing treatment, SnO 2 was gradually reduced to metallic Sn in a mixed H 2 /N 2 atmosphere and leaded to Sn/SnO 2 or Sn cores. Subsequently, the original SnO 2 hollow nanospheres in the core was collapsed and transformed from clusters to nanoparticles. The electromagnetic absorption properties were significant improved for the binary composite (Sn/SnO 2 @C) as compared to SnO 2 hollow sphere, SnO 2 @C and Sn@C products. The effective absorption frequency width was up to 7.1 GHz with a matched thickness of 1.5 mm. The excellent electromagnetic absorption mechanism was attributed to the balanced impedance matching and attenuation ability. Besides, the existed Sn/SnO 2 interface plays a key role on the attenuation intensity since the boosted interface polarization intensity.

KW - Bandwidth frequency

KW - Core–shell

KW - Hollow nano-sphere

KW - Interface polarization

KW - Sn/SnO @C

KW - Tunable core composition

UR - https://www.scopus.com/pages/publications/85048394258

U2 - 10.1016/j.apsusc.2018.06.062

DO - 10.1016/j.apsusc.2018.06.062

M3 - 文章

AN - SCOPUS:85048394258

SN - 0169-4332

VL - 455

SP - 1057

EP - 1062

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Interface polarization strategy to prepare Sn/SnO ₂ @C absorber with tunable core compositions and broader frequency absorption properties

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Keywords

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