Flame-retardant poly(vinyl alcohol)/MXene multilayered films with outstanding electromagnetic interference shielding and thermal conductive performances

Jin, Xiuxiu; Wang, Jianfeng; Dai, Lunzhi; Liu, Xiaoya; Li, Lei; Yang, Yanyu; Cao, Yong; Wang, Wanjie; Wu, Hong; Guo, Shaoyun

doi:10.1016/j.cej.2019.122475

Cited by 501 publications

(211 citation statements)

References 51 publications

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“…The poly (vinyl alcohol)/MXene (PVA/MXene) multilayered composite reported by Jin et al exhibits 44.4 dB (wt.%-19.5%) of EMI SE (SE R -8.3 dB) with 0.027 mm of thickness and decrease with decreasing MXene loading in the PVA matrix. MXene in a PVA matrix has a similar EC trend and diminishes with less loading of MXene filler (Table 3) [51][52][53]. Further, the Xu et al study shows that the PVA/MXene foam considerably minimized the EMI SE and exhibits 28 dB of EMI SE with a lower SE R (2 dB), which is due to the differences in EC and its porous nature.…”

Section: Emi Shielding Of Mxene Composite and Synthesismentioning

confidence: 93%

“…The SE R above 3 dB is induced by charge flow in the matrix. It is obvious that the EMI SE of the PVA/MXene composites are contingent not only structural features, but also filler loading of the composite [53,54]. The honeycomb (HC) structure can be manufactured by using reduced graphene oxide (rGO)−MXene/epoxy composition for which the Al 2 O 3 HC template is used.…”

Section: Emi Shielding Of Mxene Composite and Synthesismentioning

confidence: 99%

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Recent Advancement of Electromagnetic Interference (EMI) Shielding of Two Dimensional (2D) MXene and Graphene Aerogel Composites

2020

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The two Dimensional (2D) materials such as MXene and graphene, are most promising materials, as they have attractive properties and attract numerous application areas like sensors, supper capacitors, displays, wearable devices, batteries, and Electromagnetic Interference (EMI) shielding. The proliferation of wireless communication and smart electronic systems urge the world to develop light weight, flexible, cost effective EMI shielding materials. The MXene and graphene mixed with polymers, nanoparticles, carbon nanomaterial, nanowires, and ions are used to create materials with different structural features under different fabrication techniques. The aerogel based hybrid composites of MXene and graphene are critically reviewed and correlate with structure, role of size, thickness, effect of processing technique, and interfacial interaction in shielding efficiency. Further, freeze drying, pyrolysis and hydrothermal treatment is a powerful tool to create excellent EMI shielding aerogels. We present here a review of MXene and graphene with various polymers and nanomaterials and their EMI shielding performances. This will help to develop a more suitable composite for modern electronic systems.

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Section: Emi Shielding Of Mxene Composite and Synthesismentioning

confidence: 93%

Section: Emi Shielding Of Mxene Composite and Synthesismentioning

confidence: 99%

Recent Advancement of Electromagnetic Interference (EMI) Shielding of Two Dimensional (2D) MXene and Graphene Aerogel Composites

2020

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“…Dual functional MXene/PVA composites have been produced using the LbL assembly of Ti 3 C 2 T x MXene and poly vinyl alcohol (PVA) via a simple liquid casting method. [65] The first layer of aqueous PVA solution was cast on a clean iron substrate and completely dried at 45 °C. MXene layer of varying concentrations was deposited on the PVA layer and dried under the same conditions.…”

Section: Layer-by-layer Structured Mxenesmentioning

confidence: 99%

2D MXenes for Electromagnetic Shielding: A Review

Iqbal

Sambyal

Koo

2020

Adv Funct Materials

583

375

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Since the first report on electromagnetic interference (EMI) shielding of 2D Ti 3 C 2 T x in 2016, MXenes have captured the leadership position among lightweight shielding materials due to many advantages, including their excellent shielding performance, outstanding metallic conductivity, low density, large specific surface area, tunable surface chemistry, and solution processability. MXenes triggered a huge interest in the materials research community, leading to over 100 reported publications on MXenes' EMI shielding within 3 years. Many MXenes composites and hybrids in different structural forms, such as compact and laminate structures, layer-by-layer assemblies, porous foams and aerogels, and segregated structures, have been explored to further improve the intrinsic EMI shielding properties of MXenes. This article comprehensively reviews the recent advancements in MXene-based EMI shielding materials with different structural morphologies and provides an insight into future challenges and guidelines for finding material solutions for the nextgeneration shielding applications.

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“…Hydrophilic surface terminations can assist in designing MXene composites or hybrids with nanofibrous polymeric materials, where the hydrogen bonding between the hydroxyl (OH) groups and functionalized nanomaterials or polymeric chains imparts mechanical strength and environmental stability, simultaneously. [108,109] To demonstrate this, Ti 3 C 2 T x composites with 1D cellulose nanofibers with a nacre-like structure were fabricated to modify the mechanical properties of MXene. [108] At 50 wt% loading of Ti 3 C 2 T x , improved mechanical properties (tensile strength ≈135.4 MPa, fracture strain ≈16.7%) were achieved.…”

Section: (7 Of 23)mentioning

confidence: 99%

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

et al. 2020

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conductive nature, tunable surface chemistry, and the ability to intercalate other metal ions, MXenes are at the forefront of the research in this field. One of the major factors responsible for the rapid progress in the research on MXene materials is their electrical conductivity, which is the highest among all synthetic 2D materials, more than ten times the conductivity of reduced graphene oxide (rGO) films. [7,8] This unique characteristic coupled with a hydrophilic nature and a good dispersion stability has expanded the applications of MXenes in electromagnetic interference (EMI) shielding, [9] optoelectronics, [10] sensing, [11] thermal heaters (THs), [12] thermoelectrics, [13] high dielectric materials, [14] triboelectric nanogenerators, [15] and electrode materials for batteries and supercapacitors. [16,17] Compared to graphene, the flagship 2D material, MXenes offer greater promise in applications requiring high electrical conductivity and solution processing to construct thin films via low-cost techniques such as spray coating. MXenes can form stable dispersions in a variety of solvents without an additive or surfactant; these dispersions are stable for several days, making them ideal for designing optoelectronic, plasmonic, and polymer composite applications. Most recently, a large area MXene film with dimensions of 100 cm × 10 cm was reported to possess an outstanding tensile strength (≈570 MPa), excellent electrical conductivity (≈15 100 S cm −1) and superior EMI shielding effectiveness (SE), (≈50 dB for 940 nm thick film), surpassing all the existing 2D materials produced to date. [18] The search for new and intriguing applications based on the outstanding electrical conductivity of MXenes is a topic of great interest. [6,19] MXenes are typically synthesized by a top-down selective etching procedure of a parent MAX phase, where "M" is an early transition metal element, "A" represents an element from Group 13 or 14, and "X" is either carbon or nitrogen. [20] To date, more than 100 pure MAX phase materials have been prepared; this number increases with the addition of solid solutions and/ or ordered double transition metal structures. [21] Potentially, all the MAX phase precursors can be converted to their respective MXenes, presenting numerous possibilities of materials design, in particular, regulating the electronic transport in a 2D lattice. [6] The "A" group elements in the MAX phase are etched using a mixture of acids and salts, including hydrofluoric acid (HF), NH 4 F, NaF, CaF, HCl+LiF mixture (forming in situ HF), HF+HCl, and others. [20,22] The etching process leaves the termination groups, T x (e.g., O, OH, and F) on the surface of MXenes, which are bonded to the outer M layers. The surface chemistry of MXenes offers significant opportunities to develop Since their discovery in 2011, 2D transition metal carbides, nitrides, and carbonitrides, known as MXenes, have attracted considerable global research interest owing to their outstanding electrical conductivity coupled with light weight, ...

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Flame-retardant poly(vinyl alcohol)/MXene multilayered films with outstanding electromagnetic interference shielding and thermal conductive performances

Cited by 501 publications

References 51 publications

Recent Advancement of Electromagnetic Interference (EMI) Shielding of Two Dimensional (2D) MXene and Graphene Aerogel Composites

Recent Advancement of Electromagnetic Interference (EMI) Shielding of Two Dimensional (2D) MXene and Graphene Aerogel Composites

2D MXenes for Electromagnetic Shielding: A Review

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

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