Recent Advances in MXene/Polyaniline-Based Composites for Electrochemical Devices and Electromagnetic Interference Shielding Applications

Abstract

Due to serious global warming and environmental issues, the demand for clean and sustainable energy storage devices is significantly increased. Often accompanied by rapid growth of portable electronic vehicles and devices, massive electromagnetic wave pollution becomes unavoidable. To mitigate the above two issues, this mini-review summaries preparation methods and recent developments of MXene/polyaniline-based composites for their applications in electrochemical devices and electromagnetic interference shielding. Based on excellent synergistic effects between single compounds and designed hierarchical structures, MXene/polyaniline-based composites usually exhibit enhanced physical and chemical properties, showing great potentials in sustainable electrochemical properties and electromagnetic wave protections for human health as well as normal operation of precise electronic devices.

A facile supercritical fluid synthesis of cobalt sulfide integrated with MXene and PANI/PDOT nanocomposites as electrode material for supercapacitor applications

“…( 3) to be 0.43. (Co-S), 686 cm − 1 (C-S/C-H), 829 cm − 1 (C-S), 1037 cm − 1 (S-Phenyl), 1126 cm − 1 (S-C/NH-), 1313 cm − 1 (C-C/C-N), 1403 cm − 1 (O-H), 1527 cm − 1 (C = C), 2926 cm − 1 (C-H), and 3438 cm − 1 (O-H) [12,32,33].…”

Greatly Enhanced Electromagnetic Interference Shielding Effectiveness and Mechanical Properties of Polyaniline-Grafted Ti3C2Tx MXene–PVDF Composites

“…Enhanced SE was attributed to the additional dipole polarization loss from the polydopamine. Furthermore, the surface modification of MXene flakes with low conductivity materials can also enhance the impedance matching and, subsequently, the EMW absorption by enhancing dipole and interfacial polarization losses. , For example, the EMI SE of MXene–poly­(3,4-ethylene dioxythiophene)/poly­(styrene sulfonate) (PEDOT/PSS) polymer composites was investigated. , Improved EMI SE of the composites was attributed to the multiple interface reflection and polarization between the MXene and PEDOT/PSS interfaces. Zhang et al prepared a brick-mud structure of the MXene–polyaniline (PA) composite and improved its EMI SE.…”

“…Enhanced EMI SE was attributed to the conduction loss via superior electrical conductivity, multiple reflection loss between layered structures, and polarization loss between MXene and PA. Despite their superior EMI SE, poor mechanical properties of the binary MXene–PA-based composites and also processing challenges of grafted conjugated polymers on MXene limit their applications . To avoid this, incorporating the modified MXene flakes into engineering thermoplastics such as poly (vinylidene fluoride) (PVDF) is a promising approach to simultaneously take advantage of enhanced design flexibility, higher mechanical properties, and superb EMI SE. , PVDF-based polymers have attracted continued attention in EMI shielding applications due to their intrinsic dipole and interfacial polarization effects, which can further enhance the dissipation of EM radiation …”

Electrospun MXene Nanosheet/Polymer Composites for Electromagnetic Shielding and Microwave Absorption: A Review

“…Song et al reviewed the types and basic properties of MXene. He et al reviewed the preparation methods of MXene/polyaniline (PANI) matrix composites and their applications in electrochemical devices, EMI shielding, and MA fields. MXene/PANI matrix composites exhibit outstanding physical and chemical properties due to the excellent synergistic effect between their single compounds and the designed hierarchical structures.…”