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ZnO-decorated SiC@C hybrids with strong electromagnetic absorption
A novel strategy is provided to improve the absorption of SiC nanomaterials through surface carbonization of SiC nanowires and hydrolysis. SiC@C-ZnO composites were synthesized with different dosages of ZnNO(3)·6H(2)O. Composition, microstructure, and electromagnetic properties of the composites wer...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10167858/ https://www.ncbi.nlm.nih.gov/pubmed/37179593 http://dx.doi.org/10.3762/bjnano.14.47 |
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author | Duan, Liqun Yang, Zhiqian Xia, Yilu Dai, Xiaoqing Wu, Jian’an Sun, Minqian |
author_facet | Duan, Liqun Yang, Zhiqian Xia, Yilu Dai, Xiaoqing Wu, Jian’an Sun, Minqian |
author_sort | Duan, Liqun |
collection | PubMed |
description | A novel strategy is provided to improve the absorption of SiC nanomaterials through surface carbonization of SiC nanowires and hydrolysis. SiC@C-ZnO composites were synthesized with different dosages of ZnNO(3)·6H(2)O. Composition, microstructure, and electromagnetic properties of the composites were characterized and analyzed. Results from TEM and XRD show that crystalline ZnO particles adhere to the surface of amorphous carbon, and the ZnO content increases as a function of a dosage of ZnNO(3)·6H(2)O. The as-prepared SiC@C-ZnO hybrids exhibit effective electromagnetic absorption, which is related to a synergy effect of different dielectric loss processes. The minimum reflection loss reached −65.4 dB at 11 GHz at a sample thickness of 3.1 mm, while the effective absorption bandwidth (EAB) reached 7 GHz at a sample thickness of 2.56 mm. Furthermore, the EAB of the samples can also cover the whole X band and Ku band at small sample thicknesses (2.09–3.47 mm). The excellent properties of the materials suggest great prospect as electromagnetic absorbers. |
format | Online Article Text |
id | pubmed-10167858 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-101678582023-05-10 ZnO-decorated SiC@C hybrids with strong electromagnetic absorption Duan, Liqun Yang, Zhiqian Xia, Yilu Dai, Xiaoqing Wu, Jian’an Sun, Minqian Beilstein J Nanotechnol Full Research Paper A novel strategy is provided to improve the absorption of SiC nanomaterials through surface carbonization of SiC nanowires and hydrolysis. SiC@C-ZnO composites were synthesized with different dosages of ZnNO(3)·6H(2)O. Composition, microstructure, and electromagnetic properties of the composites were characterized and analyzed. Results from TEM and XRD show that crystalline ZnO particles adhere to the surface of amorphous carbon, and the ZnO content increases as a function of a dosage of ZnNO(3)·6H(2)O. The as-prepared SiC@C-ZnO hybrids exhibit effective electromagnetic absorption, which is related to a synergy effect of different dielectric loss processes. The minimum reflection loss reached −65.4 dB at 11 GHz at a sample thickness of 3.1 mm, while the effective absorption bandwidth (EAB) reached 7 GHz at a sample thickness of 2.56 mm. Furthermore, the EAB of the samples can also cover the whole X band and Ku band at small sample thicknesses (2.09–3.47 mm). The excellent properties of the materials suggest great prospect as electromagnetic absorbers. Beilstein-Institut 2023-05-04 /pmc/articles/PMC10167858/ /pubmed/37179593 http://dx.doi.org/10.3762/bjnano.14.47 Text en Copyright © 2023, Duan et al. https://creativecommons.org/licenses/by/4.0/This is an open access article licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-journals.org/bjnano/terms/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) ). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this article could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material. |
spellingShingle | Full Research Paper Duan, Liqun Yang, Zhiqian Xia, Yilu Dai, Xiaoqing Wu, Jian’an Sun, Minqian ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title | ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title_full | ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title_fullStr | ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title_full_unstemmed | ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title_short | ZnO-decorated SiC@C hybrids with strong electromagnetic absorption |
title_sort | zno-decorated sic@c hybrids with strong electromagnetic absorption |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10167858/ https://www.ncbi.nlm.nih.gov/pubmed/37179593 http://dx.doi.org/10.3762/bjnano.14.47 |
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