作者：Yuhong Cui, Zihao Liu, Yunfei Zhang, Pei Liu, Mudasir Ahmad, Qiuyu Zhang, Baoliang Zhang
关键字：MXene, Composite microspheres, Porous material, Ni nanochains, Microwave absorption
论文来源：期刊
具体来源：Carbon
发表时间：2021年

In this paper, two dimensional Ti3C2Tx MXene nanosheets and one-dimensional Ni nanochains are successfully assembled into three dimensional porous MXene/Ni composite microspheres by ultrasonic spray. Their unique micro nano structure and well-designed three-dimensional porous interconnection network can significantly improve the stacking of Ti3C2Tx MXene nanosheets and the agglomeration of magnetic Ni nanochains. By changing the content of Ni nanochains，we can obtain MXene/Ni composite microspheres with different magnetic content. Due to the difference in conductivity between Ti3C2Tx MXene and Ni, as well as the newly generated hetero interface and abundant surface groups, MXene/Ni composite microspheres show good impedance matching and excellent electromagnetic wave absorption performance. The minimum reflection loss (RLmin) is
52.7 dB@12.8 GHz, and the corresponding matching thickness is only 1.9 mm. The preparation of MXene/Ni composite microspheres provides a simple and effective method for designing other MXene-based composite materials.