Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption
We developed a simple method to fabricate SiO<sub>2</sub>-sphere-supported N-doped CNTs (NCNTs) for electromagnetic wave (EMW) absorption. EMW absorption was tuned by adsorption of the organic agent on the precursor of the catalysts. The experimental results show that the conductivity lo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/10/2636 |
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| author | Fenghui Cao Jia Xu Xinci Zhang Bei Li Xiao Zhang Qiuyun Ouyang Xitian Zhang Yujin Chen |
| author_facet | Fenghui Cao Jia Xu Xinci Zhang Bei Li Xiao Zhang Qiuyun Ouyang Xitian Zhang Yujin Chen |
| author_sort | Fenghui Cao |
| collection | DOAJ |
| description | We developed a simple method to fabricate SiO<sub>2</sub>-sphere-supported N-doped CNTs (NCNTs) for electromagnetic wave (EMW) absorption. EMW absorption was tuned by adsorption of the organic agent on the precursor of the catalysts. The experimental results show that the conductivity loss and polarization loss of the sample are improved. Meanwhile, the impedance matching characteristics can also be adjusted. When the matching thickness was only 1.5 mm, the optimal 3D structure shows excellent EMW absorption performance, which is better than most magnetic carbon matrix composites. Our current approach opens up an effective way to develop low-cost, high-performance EMW absorbers. |
| first_indexed | 2024-03-10T06:19:21Z |
| format | Article |
| id | doaj.art-92110a6b56c540aab3a6b37df582174e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T06:19:21Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-92110a6b56c540aab3a6b37df582174e2023-11-22T19:24:26ZengMDPI AGNanomaterials2079-49912021-10-011110263610.3390/nano11102636Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave AbsorptionFenghui Cao0Jia Xu1Xinci Zhang2Bei Li3Xiao Zhang4Qiuyun Ouyang5Xitian Zhang6Yujin Chen7Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaKey Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, ChinaWe developed a simple method to fabricate SiO<sub>2</sub>-sphere-supported N-doped CNTs (NCNTs) for electromagnetic wave (EMW) absorption. EMW absorption was tuned by adsorption of the organic agent on the precursor of the catalysts. The experimental results show that the conductivity loss and polarization loss of the sample are improved. Meanwhile, the impedance matching characteristics can also be adjusted. When the matching thickness was only 1.5 mm, the optimal 3D structure shows excellent EMW absorption performance, which is better than most magnetic carbon matrix composites. Our current approach opens up an effective way to develop low-cost, high-performance EMW absorbers.https://www.mdpi.com/2079-4991/11/10/2636CNTsdielectric lossnitrogen dopingelectromagnetic wave absorption |
| spellingShingle | Fenghui Cao Jia Xu Xinci Zhang Bei Li Xiao Zhang Qiuyun Ouyang Xitian Zhang Yujin Chen Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption Nanomaterials CNTs dielectric loss nitrogen doping electromagnetic wave absorption |
| title | Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption |
| title_full | Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption |
| title_fullStr | Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption |
| title_full_unstemmed | Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption |
| title_short | Tuning Dielectric Loss of SiO<sub>2</sub>@CNTs for Electromagnetic Wave Absorption |
| title_sort | tuning dielectric loss of sio sub 2 sub cnts for electromagnetic wave absorption |
| topic | CNTs dielectric loss nitrogen doping electromagnetic wave absorption |
| url | https://www.mdpi.com/2079-4991/11/10/2636 |
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