Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption
MXene is widely used in the fields of microwave absorption and electromagnetic shielding to balance electromagnetic pollution with the development of communication technologies and human health, due to its excellent surface functional groups and tunable electronic properties. Although pure multilaye...
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MDPI AG
2025-04-01
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| author | Qing Tang Qi Fan Lei He Ping Yu Qing Huang Yuanming Chen Bingbing Fan Kun Liang |
| author_facet | Qing Tang Qi Fan Lei He Ping Yu Qing Huang Yuanming Chen Bingbing Fan Kun Liang |
| author_sort | Qing Tang |
| collection | DOAJ |
| description | MXene is widely used in the fields of microwave absorption and electromagnetic shielding to balance electromagnetic pollution with the development of communication technologies and human health, due to its excellent surface functional groups and tunable electronic properties. Although pure multilayered MXene has an excellent accordion-like structure, the weak dielectric loss and lack of magnetic loss result in poor microwave absorption performance. Here, we propose a strategy for the catalytic growth of CNTs by the electrophoretic deposition of adsorbed metal ions, leading to the successful preparation of Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> composites with a “layer-by-layer” structure, achieved through in situ regulated growth of CNTs. By introducing dielectric–magnetic synergy to improve the impedance matching conditions, and by regulating the diameter of the CNTs to alter the electromagnetic parameters of Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i>, the 2-Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> composite achieves the best reflection loss (RL) value of −44.08 dB and an effective absorption bandwidth of 1.52 GHz at only 2.49 mm thickness. This unique layered structure and the regulation strategy provide new opportunities for the development of few-layered MXene composites. |
| format | Article |
| id | doaj-art-570fa15b513346a8a2b13b00e06c9ca5 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-570fa15b513346a8a2b13b00e06c9ca52025-08-20T03:08:57ZengMDPI AGMolecules1420-30492025-04-01307162510.3390/molecules30071625Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave AbsorptionQing Tang0Qi Fan1Lei He2Ping Yu3Qing Huang4Yuanming Chen5Bingbing Fan6Kun Liang7Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, ChinaZhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaSchool of Electronic and Information Engineering, Ningbo University of Technology, Ningbo 315211, ChinaZhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaZhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaMXene is widely used in the fields of microwave absorption and electromagnetic shielding to balance electromagnetic pollution with the development of communication technologies and human health, due to its excellent surface functional groups and tunable electronic properties. Although pure multilayered MXene has an excellent accordion-like structure, the weak dielectric loss and lack of magnetic loss result in poor microwave absorption performance. Here, we propose a strategy for the catalytic growth of CNTs by the electrophoretic deposition of adsorbed metal ions, leading to the successful preparation of Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> composites with a “layer-by-layer” structure, achieved through in situ regulated growth of CNTs. By introducing dielectric–magnetic synergy to improve the impedance matching conditions, and by regulating the diameter of the CNTs to alter the electromagnetic parameters of Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i>, the 2-Ni-MWCNTs/Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> composite achieves the best reflection loss (RL) value of −44.08 dB and an effective absorption bandwidth of 1.52 GHz at only 2.49 mm thickness. This unique layered structure and the regulation strategy provide new opportunities for the development of few-layered MXene composites.https://www.mdpi.com/1420-3049/30/7/1625electromagnetic wave absorptiontwo-dimensional materialfew-layered MXeneMWCNTselectrophoretic deposition |
| spellingShingle | Qing Tang Qi Fan Lei He Ping Yu Qing Huang Yuanming Chen Bingbing Fan Kun Liang Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption Molecules electromagnetic wave absorption two-dimensional material few-layered MXene MWCNTs electrophoretic deposition |
| title | Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption |
| title_full | Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption |
| title_fullStr | Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption |
| title_full_unstemmed | Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption |
| title_short | Few-Layered MXene Modulating In Situ Growth of Carbon Nanotubes for Enhanced Microwave Absorption |
| title_sort | few layered mxene modulating in situ growth of carbon nanotubes for enhanced microwave absorption |
| topic | electromagnetic wave absorption two-dimensional material few-layered MXene MWCNTs electrophoretic deposition |
| url | https://www.mdpi.com/1420-3049/30/7/1625 |
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