• Tan, Daniel
• Kumar, T. R. Suresh
• Bora, Pritom J.

Abstract

<jats:p>MXene, the new family of two-dimensional materials having numerous nanoscale layers, is being considered as a novel microwave absorption material. However, MXene/functionalized MXene-loaded polymer nanocomposites exhibit narrow reflection loss (RL) bandwidth (RL less than or equal to −10 dB). In order to enhance the microwave absorption bandwidth of MXene hybrid-matrix materials, for the first time, macroscopic design approach is carried out for TiO<jats:sub>2</jats:sub>-Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:sub>x</jats:sub>MXene and Fe<jats:sub>3</jats:sub>O<jats:sub>4</jats:sub>@TiO<jats:sub>2</jats:sub>-Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:sub>x</jats:sub>MXene hybrids through simulation. The simulated results indicate that use of pyramidal meta structure of MXene can significantly tune the RL bandwidth. For optimized MXene hybrid-matrix materials pyramid pattern, the bandwidth enhances to 3–18 GHz. Experimental RL value well matched with the simulated RL. On the other hand, the optimized Fe<jats:sub>3</jats:sub>O<jats:sub>4</jats:sub>@TiO<jats:sub>2</jats:sub>-Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:sub>x</jats:sub>hybrid exhibits two specific absorption bandwidths (minimum RL value - −47 dB). Compared with other two-dimensional nanocomposites such as graphene or Fe<jats:sub>3</jats:sub>O<jats:sub>4</jats:sub>-graphene, MXene hybrid-matrix materials show better microwave absorption bandwidth in macroscopic pattern.</jats:p>

Topics

• nanocomposite
• impedance spectroscopy
• polymer
• simulation
• laser emission spectroscopy
• two-dimensional