Bioinspired porous Ti2CTX/Si3N4 composites with aligned lamellar structure for efficient microwave absorption
作者：Hailong Xu, Chenyang Jing, Zhijian Xu, Haoyang Zhan, Fang Ye, Qiang Chen, Meng Zhu, Luo Kong, Xinliang Li, Xia Chai, Yuchang Qing, Xiaomeng Fan, Fa Luo · 发表于：Soft Science · 年份：2025 · DOI：10.20517/ss.2025.63 · 被引用次数：35 · 研究领域：MXene and MAX Phase Materials、Electromagnetic wave absorption materials、Boron and Carbon Nanomaterials Research
With the ever-deepening understanding of nano-electromagnetic interactions and the advancements of fabrication methodologies of nanomaterials, diverse electromagnetic platforms utilizing nanomaterials have been developed for next-generation electromagnetic safeguarding applications. This study presents the design and fabrication of bioinspired porous Ti<sub>2</sub>CT<sub>X</sub>/Si<sub>3</sub>N<sub>4</sub> composites featuring an aligned lamellar structure, aimed at facilitating the effective absorption and dissipation of electromagnetic radiation. The layered configuration of Ti<sub>2</sub>CT<sub>X</sub>/Si<sub>3</sub>N<sub>4</sub> composites facilitates the repeated reflection of electromagnetic waves between neighboring Ti<sub>2</sub>CT<sub>X</sub> layers, hence enhancing the energy dissipation of these waves. At a Ti<sub>2</sub>CT<sub>X</sub> concentration of merely 0.21 wt.%, the effective absorption bandwidth of Ti<sub>2</sub>CT<sub>X</sub>/Si<sub>3</sub>N<sub>4</sub> composites encompasses the whole X-band (8.2-12.4 GHz), with a minimum reflection loss of -53 dB achievable at a sample thickness of 5 mm. Simultaneously, the fabricated Ti<sub>2</sub>CT<sub>X</sub>/Si<sub>3</sub>N<sub>4</sub> composites demonstrate advantages in lightwe...