Simple approach to fabricate MXene/cellulose paper for electromagnetic interference shielding applications

Abstract

A simple approach was developed to fabricate high-performance MXene/cellulose (MC)-based electromagnetic interference (EMI) shielding papers. The oriented MXene sheets located on one side of cellulose filter paper construct a continuous conductive layer, endowing the MC paper with high electrical conductivity (240.1 S/m) and excellent EMI shielding effectiveness (29.3 dB for 0.192-mm thickness) at an MXene content of 0.72 vol%. Moreover, the EMI shielding effectiveness of four stacked MC papers reached 40.5 dB. This result means that 99.9911% of the microwave radiation is attenuated, and 0.0089% is transmitted, through the four-piece MXene/cellulose filter papers. Therefore, MC paper has promising properties for excellent EMI shielding materials in current electronic devices.

Strong, flexible, and highly conductive cellulose nanofibril/PEDOT:PSS/MXene nanocomposite films for efficient electromagnetic interference shielding

“…In short, flexible CNF/PEDOT:PSS/MXene nanocomposite films with high conductivity and excellent mechanical properties were manufactured using a facile and versatile 32,43,48,[70][71][72]77,78 approach. The optimized CNF/PEDOT:PSS/MXene-50 nanocomposite film (with a weight ratio of 5 : 5 of CNF/PEDOT:PSS to MXene) showed good flexibility, high tensile strength (59.99 MPa), and high electrical conductivity (1903.2 S cm −1 ).…”

“…6 (a) Schematic illustration of the EMI shielding mechanism of CNF/PEDOT:PSS/MXene. (b) Comparison of the EMI shielding performances of CNF/PEDOT:PSS/MXene (red balls) and those reported in the literature 32,43,48,[70][71][72]77,78.…”

Recent Progress in the Application of Cellulose in Electromagnetic Interference Shielding Materials

“…Zhan et al also fabricated a MXene/cellulose (MC)based EMI shielding paper through vacuum-assisted filtration process, and the highest EMI SE value of MC papers reached 40.5 dB. [130] Cao et al fabricated a flexible CNT/MXene/CNF EMI shielding paper through an alternating vacuum-assisted filtration method. [104] An EMI SE value of 38.4 dB is achieved by the paper with gradient and sandwich structure.…”

Cellulose‐Based Sustainable Composites: A Review of Systems for Applications in EMI Shielding and Sensors

“…prepared composite films based on cellulose carbon aerogel (CCA), rGO, and polydimethylsiloxane (PDMS); their thermal conductivity and electromagnetic shielding performance were studied. [ 83 ] The resulting materials showed an EMI SE T of 51.0 dB and thermal conductivity of 0.65 W mK −1 at 3.05 wt% loading of CCA@rGO in PDMS.…”