Electromagnetic Interference Shielding Using MXenes and Their Composites

Abstract

The problems associated with electromagnetic interference (EMI) have grown up rapidly due to the large usage of electronic gadgets and telecommunication devices. Thus, it is extremely important to understand the EMI shielding mechanisms and develop such materials that can mitigate the harmful effects of EMI arising due to advancement of telecommunication and electronics industry. This chapter throws some light on the latest addition to EMI shielding materials, in particular, the recently discovered two-dimensional transition metal carbides or nitrides (MXenes) and their composites. First, a brief overview of EMI shielding mechanisms is presented followed by discussion of MXene-based EMI shielding materials. The literature reports are summarized in a way to give the readers an idea about the utility and progress of MXenes and their polymer composites in EMI shielding. Since the microwave absorption (MWA) properties are as important as EMI shielding, the discussion on MXene-based materials as microwave absorbers is presented in detail. Further to the end, future perspectives of MXene as EMI shielding and MWA are discussed along with suggestions to enhance the performance by controlling the surface characteristics, architectural control, physical properties, and quality of MXenes.