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<p>As a novel 2D material, Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>–MXene has become a major area of interest in the field of microwave absorption (MA). However, the MA effect of common Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>–MXene is not prominent and often requires complex processes or combinations of other materials to achieve enhanced performance. In this context, a kind of gradient woodpile structure using common Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>–MXene as MA material was designed and manufactured through direct ink writing (DIW) 3D printing. The minimum reflection loss (RL<sub>min</sub>) of the Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>–MXene-based gradient woodpile structures with a thickness of less than 3 mm can reach −70 dB, showing considerable improvement compared with that of a completely filled structure. In addition, the effective absorption bandwidth (EAB) reaches 7.73 GHz. This study demonstrates that a Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>–MXene material with excellent MA performance and tunable frequency band can be successfully fabricated with a macroscopic structural design and through DIW 3D printing without complex material hybridization and modification, offering broad application prospects by reducing electromagnetic wave radiation and interference.</p>

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Constructing Ti3C2Tx–MXene-based gradient woodpile structure by direct ink writing 3D printing for efficient microwave absorption

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Changtian Zhu,
  • Pei Liu,
  • Jin Chen,
  • Zixuan Ding,
  • Guohui Tang,
  • Qingqing Gao,
  • Yinxu Ni,
  • Kai Xu,
  • Zhilei Hao,
  • Gaojie Xu,
  • Fenghua Liu

摘要

As a novel 2D material, Ti3C2Tx–MXene has become a major area of interest in the field of microwave absorption (MA). However, the MA effect of common Ti3C2Tx–MXene is not prominent and often requires complex processes or combinations of other materials to achieve enhanced performance. In this context, a kind of gradient woodpile structure using common Ti3C2Tx–MXene as MA material was designed and manufactured through direct ink writing (DIW) 3D printing. The minimum reflection loss (RLmin) of the Ti3C2Tx–MXene-based gradient woodpile structures with a thickness of less than 3 mm can reach −70 dB, showing considerable improvement compared with that of a completely filled structure. In addition, the effective absorption bandwidth (EAB) reaches 7.73 GHz. This study demonstrates that a Ti3C2Tx–MXene material with excellent MA performance and tunable frequency band can be successfully fabricated with a macroscopic structural design and through DIW 3D printing without complex material hybridization and modification, offering broad application prospects by reducing electromagnetic wave radiation and interference.