Journal ArticleDOI
Electromagnetic interference shielding with 2D transition metal carbides (MXenes)
Faisal Shahzad,Mohamed Alhabeb,Christine B. Hatter,Babak Anasori,Soon Man Hong,Chong Min Koo,Yury Gogotsi +6 more
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TLDR
The mechanical flexibility and easy coating capability offered by MXenes and their composites enable them to shield surfaces of any shape while providing high EMI shielding efficiency.Abstract:
Materials with good flexibility and high conductivity that can provide electromagnetic interference (EMI) shielding with minimal thickness are highly desirable, especially if they can be easily processed into films. Two-dimensional metal carbides and nitrides, known as MXenes, combine metallic conductivity and hydrophilic surfaces. Here, we demonstrate the potential of several MXenes and their polymer composites for EMI shielding. A 45-micrometer-thick Ti3C2Tx film exhibited EMI shielding effectiveness of 92 decibels (>50 decibels for a 2.5-micrometer film), which is the highest among synthetic materials of comparable thickness produced to date. This performance originates from the excellent electrical conductivity of Ti3C2Tx films (4600 Siemens per centimeter) and multiple internal reflections from Ti3C2Tx flakes in free-standing films. The mechanical flexibility and easy coating capability offered by MXenes and their composites enable them to shield surfaces of any shape while providing high EMI shielding efficiency.read more
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Journal ArticleDOI
2D metal carbides and nitrides (MXenes) for energy storage
TL;DR: More than twenty 2D carbides, nitrides and carbonitrides of transition metals (MXenes) have been synthesized and studied, and dozens more predicted to exist.
Journal ArticleDOI
Guidelines for Synthesis and Processing of Two-Dimensional Titanium Carbide (Ti3C2Tx MXene)
Mohamed Alhabeb,Kathleen Maleski,Babak Anasori,Pavel Lelyukh,Leah Clark,Saleesha Sin,Yury Gogotsi +6 more
TL;DR: Two-dimensional transition metal carbides, carbonitrides, and nitrides (MXenes) were discovered in 2011 and more than 20 different compositions have been synthesized by the selective etching of MAX phase and other precursors and many more theoretically predicted as mentioned in this paper.
Journal ArticleDOI
Flexible MXene/Graphene Films for Ultrafast Supercapacitors with Outstanding Volumetric Capacitance
Jun Yan,Jun Yan,Chang E. Ren,Kathleen Maleski,Christine B. Hatter,Babak Anasori,Patrick Urbankowski,Asya Sarycheva,Yury Gogotsi +8 more
TL;DR: In this article, a strategy to prepare flexible and conductive MXene/graphene (reduced graphene oxide, rGO) supercapacitor electrodes by using electrostatic self-assembly between positively charged rGO modified with poly(diallyldimethylammonium chloride) and negatively charged titanium carbide MXene nanosheets is presented.
Journal ArticleDOI
Hydrophobic, Flexible, and Lightweight MXene Foams for High-Performance Electromagnetic-Interference Shielding
TL;DR: For the first time, an efficient and facile approach is reported to fabricate freestanding, flexible, and hydrophobic MXene foam with reasonable strength by assembling MXene sheets into films followed by a hydrazine-induced foaming process.
Journal ArticleDOI
Towards flexible solid-state supercapacitors for smart and wearable electronics
TL;DR: The state-of-the-art advancements in FSSCs are reviewed to provide new insights on mechanisms, emerging electrode materials, flexible gel electrolytes and novel cell designs.
References
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Prashant Tripathi,Ch. Ravi Prakash Patel,Abhishek Dixit,Avanish Pratap Singh,Pawan Kumar,M.A. Shaz,Ritu Srivastava,Govind Gupta,Sundeep Kumar Dhawan,Bipin Kumar Gupta,O.N. Srivastava +10 more
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Journal ArticleDOI
Preparation and study of electromagnetic interference shielding materials comprised of ni-co coated on web-like biocarbon nanofibers via electroless deposition
TL;DR: In this paper, Ni-Co coated on web-like biocarbon nanofibers was successfully prepared by electroless plating by using bacterial cellulose pyrolyzed at 1200°C.
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High performance electromagnetic interference shielding of lamellar MoSi2/glass composite coatings by plasma spraying
TL;DR: In this article, the microstructure, electrical conductivity, dielectric properties and electromagnetic interference (EMI) shielding effectiveness of MoSi2/glass composite coatings were investigated.
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Thermal conductivity and electromagnetic shielding effectiveness of composites based on Ag-plating carbon fiber and epoxy
TL;DR: In this article, the authors presented a thermal conductive and electromagnetic interference shielding composites comprising low content of Ag-plating carbon fiber (APCF) for electronic packing materials.
Journal ArticleDOI
The synthesis of three-dimensional (3D) polydopamine-functioned carbonyl iron powder@polypyrrole (CIP@PPy) aerogel composites for excellent microwave absorption
TL;DR: In this article, a 3D CIP@PPy aerogel composites were synthesized through a self-assembled polymerization method using dopamine as intermediary, which showed two strong absorption peaks values of −38.9 and −39.5 dB at 12.2 and 14.2 GHz under the thickness of 2.2mm, respectively.