Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance
As a typical two-dimensional material, MXene possesses excellent conductivity and tunable interlayer space, which makes it have an impressive development potential in the field of electromagnetic (EM) waves absorbing materials. In this work, we fabricated a sandwich structure CoS@Ti<sub>3</...
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| Format: | Article |
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MDPI AG
2020-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/9/1666 |
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| author | Hui Liu Ling Li Guangzhen Cui Xinxin Wang Zhi Zhang Xuliang Lv |
| author_facet | Hui Liu Ling Li Guangzhen Cui Xinxin Wang Zhi Zhang Xuliang Lv |
| author_sort | Hui Liu |
| collection | DOAJ |
| description | As a typical two-dimensional material, MXene possesses excellent conductivity and tunable interlayer space, which makes it have an impressive development potential in the field of electromagnetic (EM) waves absorbing materials. In this work, we fabricated a sandwich structure CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> composite using a simple solvothermal process. The CoS nanoparticles are anchored on the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene sheets, forming a heterolayered structure. The results demonstrate that the CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> composites with the sandwich-like architecture showed excellent EM absorbing performance due to the synergistic effects of the conductivity loss, interface polarization, and dipole polarization. When the doping ratio was 40 wt %, the maximum reflection loss value of CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> was up to –59.2 dB at 14.6 GHz, and the corresponding effective absorption bandwidth (below –10 dB) reached 5.0 GHz when the thickness was only 2.0 mm. This work endows a new candidate for the design of MXene-based absorption materials with optimal performance. |
| first_indexed | 2024-03-10T16:49:42Z |
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| id | doaj.art-50b964f207e345cb9a51edd33bf9b311 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T16:49:42Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj.art-50b964f207e345cb9a51edd33bf9b3112023-11-20T11:21:48ZengMDPI AGNanomaterials2079-49912020-08-01109166610.3390/nano10091666Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption PerformanceHui Liu0Ling Li1Guangzhen Cui2Xinxin Wang3Zhi Zhang4Xuliang Lv5Graduate School, The Army Engineering University of PLA, Nanjing 210007, ChinaEngineering College of Field Engineering, The Army Engineering University of PLA, Nanjing 210007, ChinaGraduate School, The Army Engineering University of PLA, Nanjing 210007, ChinaGraduate School, The Army Engineering University of PLA, Nanjing 210007, ChinaGraduate School, The Army Engineering University of PLA, Nanjing 210007, ChinaEngineering College of Field Engineering, The Army Engineering University of PLA, Nanjing 210007, ChinaAs a typical two-dimensional material, MXene possesses excellent conductivity and tunable interlayer space, which makes it have an impressive development potential in the field of electromagnetic (EM) waves absorbing materials. In this work, we fabricated a sandwich structure CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> composite using a simple solvothermal process. The CoS nanoparticles are anchored on the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene sheets, forming a heterolayered structure. The results demonstrate that the CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> composites with the sandwich-like architecture showed excellent EM absorbing performance due to the synergistic effects of the conductivity loss, interface polarization, and dipole polarization. When the doping ratio was 40 wt %, the maximum reflection loss value of CoS@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> was up to –59.2 dB at 14.6 GHz, and the corresponding effective absorption bandwidth (below –10 dB) reached 5.0 GHz when the thickness was only 2.0 mm. This work endows a new candidate for the design of MXene-based absorption materials with optimal performance.https://www.mdpi.com/2079-4991/10/9/1666MXene Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>CoS nanoparticledielectric lossmicrowave absorption |
| spellingShingle | Hui Liu Ling Li Guangzhen Cui Xinxin Wang Zhi Zhang Xuliang Lv Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance Nanomaterials MXene Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> CoS nanoparticle dielectric loss microwave absorption |
| title | Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance |
| title_full | Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance |
| title_fullStr | Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance |
| title_full_unstemmed | Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance |
| title_short | Heterostructure Composites of CoS Nanoparticles Decorated on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Nanosheets and Their Enhanced Electromagnetic Wave Absorption Performance |
| title_sort | heterostructure composites of cos nanoparticles decorated on ti sub 3 sub c sub 2 sub t sub x sub nanosheets and their enhanced electromagnetic wave absorption performance |
| topic | MXene Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> CoS nanoparticle dielectric loss microwave absorption |
| url | https://www.mdpi.com/2079-4991/10/9/1666 |
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