Electromagnetic Behavior of in-situ Synthesized MXene-based Ti3C2/TiO2 Composites

Zamani, Khashayar; Tavoosi, Majid; Ghasemi, Ali

doi:10.22068/ijmse.4035

IN PRESS Back to the articles list | Back to browse issues page

‎ 10.22068/ijmse.4035

Electromagnetic Behavior of in-situ Synthesized MXene-based Ti3C2/TiO2 Composites

Khashayar Zamani

, Majid Tavoosi

, Ali Ghasemi

Abstract: (962 Views)

The present work, set out with the aim of studying the effect of in-situ precipitation of TiO₂ form Ti₃C₂T_x MXene phase on the electromagnetic (EM) behavior of Ti₃C₂/TiO₂ composites. In this regard, Ti₃C₂T_x MXene phase was synthesized using HF acidic etching of Ti₃AlC₂MAX phase and the in-situ precipitation of TiO₂ phase within Ti₃C₂ sheets was followed by controlled annealing in temperature range of 500-800 ^oC for 2 h. The phase and structural characteristics of prepared composites were investigated using X-ray diffraction (XRD), scanning electron microscope (SEM) and differential thermal analysis. The electromagnetic behavior of samples was also analyzed using vector network analyzer (VNA). The results showed that by performing the controlled annealing process of Ti₃C₂T_x MXene phase, it is possible to in-situ formation of TiO₂ phase and form the Ti₃C₂/TiO₂ composites. The electromagnetic behavior of Ti₃C₂/TiO₂ composites is in direct relation with the percentage of TiO₂ phase deposited within Ti₃C₂ sheets during annealing process. The reflection loss (RL) changed from -7.98 to -21.28 dB (within frequency range of 1-18 GHz) with increasing in annealing temperature from 500 to 800 ^oC as well as increasing the size and percentage of formed TiO₂ particles.

Keywords: MAX, MXene, In-situ, composite, Electromagnetic

Full-Text [PDF 1393 kb] (231 Downloads)

Type of Study: Research Paper | Subject: Ceramic Materials and Engineering