Core@Shell Ti3c2tx@Ni Particles with Enhanced Microwave Absorption Properties and Prolonged Stability

作     者：Xu, Weimin Li, Shibo Hu, Shujun Zhang, Weiwei Yu, Wenbo Zhou, Yang 

作者机构：Center of Materials Science and Engineering School of Mechanical and Electronic Control Engineering Beijing Jiaotong University Beijing100044 China State Key Laboratory of Advanced Forming Technology and Equipment Beijing National Innovation Institute of Lightweight Ltd. Beijing100083 China 

出 版 物：《SSRN》 

年 卷 期：2022年

核心收录：

主　　题：Nanosheets 

摘      要：2D Ti 3 C 2 T x MXene with a multi-layered structure and surface functional groups exhibits an ability to attenuate electromagnetic energy through the dielectric loss mechanism. However, the absence of magnetic properties causes its unmatched impedance and poor MA performance. In addition, as exposed to air, oxidization of Ti 3 C 2 T x generally starts from its nanosheet edges and gradually expands to the inside, causing severe oxidative degradation within days and thus restricting its industrial applications. Here, core@shell structured Ti 3 C 2 T x @Ni particles were prepared by electroless plating. The plated thinner Ni(P) shell endows the modified Ti 3 C 2 T x particles with good impedance matching with microwaves. A minimum reflection loss (RL min ) value of -48.34 dB was achieved in the Ti 3 C 2 T x @Ni particles, better than the RL min of -11 dB for the pristine Ti 3 C 2 T x . The core@shell Ti 3 C 2 T x @Ni particles are particularly attractive in its storage stability. As compared with the fast and oxidation of Ti 3 C 2 T x within 12 weeks, the as-prepared Ti 3 C 2 T x @Ni particles are stable up to a year in air because the Ni shell prevents Ti 3 C 2 T x nanosheets from oxidative degradation. © 2022, The Authors. All rights reserved.