2D MXenes: Electromagnetic property for microwave absorption and electromagnetic interference shielding

Chemical Engineering Journal, Journal Year: 2018, Volume and Issue: 359, P. 1265 - 1302

Published: Nov. 9, 2018

Language: Английский

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MXene and MXene-based composites: synthesis, properties and environment-related applications

Nanoscale Horizons, Journal Year: 2019, Volume and Issue: 5(2), P. 235 - 258

Published: Nov. 5, 2019

In recent years, a new large family of two dimensional transition metal carbides, carbonitrides, and nitrides, so-called MXenes, have grabbed considerable attention, owing to their many fascinating physical chemical properties that are closely related the rich diversity elemental compositions surface terminations. particular, it is easy for MXenes form composites with other materials such as polymers, oxides, carbon nanotubes, which further provides an effective way tune various applications. Not only MXene-based come into prominence electrode in energy storage field widely known, but they also shown great potential environment-related applications including electro/photocatalytic water splitting, photocatalytic reduction dioxide, purification sensors, thanks high conductivity, reducibility biocompatibility. this review, we summarize synthesis highlight advances Challenges perspectives future research outlined.

Language: Английский

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Two-dimensional MXenes: From morphological to optical, electric, and magnetic properties and applications

Physics Reports, Journal Year: 2020, Volume and Issue: 848, P. 1 - 58

Published: Jan. 22, 2020

MXenes, generally referring to two-dimensional (2D) transition-metal carbides, nitrides, and carbonitrides, have received tremendous attention since the first report in 2011. Extensive experimental theoretical studies unveiled their enormous potential for applications optoelectronics, photonics, catalysis, many other areas. Because of intriguing mechanical electronic properties, together with richness elemental composition chemical decoration, MXenes are poised provide a new 2D nanoplatform advanced optoelectronics. This comprehensive review, intended broad multidisciplinary readership, highlights state-of-the-art progress on MXene theory, materials synthesis techniques, morphology modifications, opto-electro-magnetic applications. The efforts exploring device performance limits, steric configurations, physical mechanisms, novel application boundaries comprehensively discussed. review is concluded compelling perspective, outlook as well non-trivial challenges future investigation MXene-based nano-optoelectronics.

Language: Английский

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Universal Strategy for HF-Free Facile and Rapid Synthesis of Two-dimensional MXenes as Multifunctional Energy Materials

Journal of the American Chemical Society, Journal Year: 2019, Volume and Issue: 141(24), P. 9610 - 9616

Published: May 22, 2019

Two-dimensional MXenes are promising for various energy-related applications such as energy storage devices and electrocatalysis of water-splitting. prepared from hydrofluoric (HF) acid etching have been widely reported. Nonetheless, the acute toxicity HF impedes large-scale fabrication their wide utilization in applications. It is thus greatly encouraging to explore a more innocuous protocol synthesis. Thereby, universal strategy based on thermal-assisted electrochemical route developed synthesize (e.g., Ti2CT x, Cr2CT V2CT x). Furthermore, cobalt ion doped show an exceptionally enhanced capability hydrogen evolution reaction (HER) oxygen (OER) activity, demonstrating multifunctionalities, which comparable commercialized catalysts. Moreover, we successfully exploited our cathodes novel aqueous rechargeable battery, with proficient retention excellent electrical output performance. This work paves nontoxic HF-free prepare demonstrates practical materials.

Language: Английский

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Synthesis, structure, properties and applications of MXenes: Current status and perspectives

Ceramics International, Journal Year: 2019, Volume and Issue: 45(15), P. 18167 - 18188

Published: June 21, 2019

Language: Английский

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Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis

Advanced Energy Materials, Journal Year: 2019, Volume and Issue: 10(11)

Published: Sept. 24, 2019

Abstract The exploitation of cheap and efficient electrocatalysts is the key to make energy‐related electrocatalytic techniques commercially viable. In recent years, transition metal phosphides (TMPs) have gained a great deal attention owing their multifunctional active sites, tunable structure, composition, as well unique physicochemical properties. This review summarizes up‐to‐date progress on TMPs in electrocatalysis from diversified synthetic methods, ingenious‐modulated strategies, novel applications. order set forth theory–structure–performance relationships upon TMPs, corresponding reaction mechanisms, electrocatalytsts' structure/composition designs desired electrochemical performance are jointly discussed, along with demonstrating practical applications overall water splitting, metal–air batteries, lithium–sulfur etc. end, some underpinning issues research orientations toward briefly proposed.

Language: Английский

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Rational Design of Two-Dimensional Transition Metal Carbide/Nitride (MXene) Hybrids and Nanocomposites for Catalytic Energy Storage and Conversion

ACS Nano, Journal Year: 2020, Volume and Issue: 14(9), P. 10834 - 10864

Published: Aug. 12, 2020

Electro-, photo-, and photoelectrocatalysis play a critical role toward the realization of sustainable energy economy. They facilitate numerous redox reactions in storage conversion systems, enabling production chemical feedstock clean fuels from abundant resources like water, carbon dioxide, nitrogen. One major obstacle for their large-scale implementation is scarcity cost-effective, durable, efficient catalysts. A family two-dimensional transition metal carbides, nitrides, carbonitrides (MXenes) has recently emerged as promising earth-abundant candidates large-area catalytic due to unique properties hydrophilicity, high metallic conductivity, ease by solution processing. To take full advantage these desirable properties, MXenes have been combined with other materials form MXene hybrids significantly enhanced performances beyond sum individual components. hybridization tunes electronic structure optimal binding active species improve intrinsic activity while increasing density accessibility sites. This review outlines recent strategies design industrially relevant electrocatalytic, photocatalytic, photoelectrocatalytic applications such water splitting, metal-air/sulfur batteries, dioxide reduction, nitrogen reduction. By clarifying roles material components hybrids, we provide synergistically couple associated highly durable applications. We conclude highlighting key gaps current understanding guide future hybrid designs

Language: Английский

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3D MXene Architectures for Efficient Energy Storage and Conversion

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(47)

Published: June 2, 2020

Abstract 2D transition metal carbides and/or nitrides (MXenes), by virtue of high electrical conductivity, abundant surface functional groups and excellent dispersion in various solvents, are attracting increasing attention showing competitive performance energy storage conversion applications. However, like other materials, MXene nanosheets incline to stack together via van der Waals interactions, which lead limited number active sites, sluggish ionic kinetics, finally ordinary materials/devices. Constructing into 3D architectures has been proven be an effective strategy reduce restacking, thus providing larger specific area, higher porosity, shorter ion mass transport distance over normal 1D structures. In this review, the commonly used strategies for manufacturing (3D MXenes MXene‐based composites) summarized, such as template, assembly, printing, methods. Special is also given structure–property relationships their applications electrochemical conversion, including supercapacitors, rechargeable batteries, electrocatalysis. Finally, authors propose a brief perspective on future opportunities challenges architectures/devices.

Language: Английский

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Bioinspired Ultrasensitive and Stretchable MXene-Based Strain Sensor via Nacre-Mimetic Microscale “Brick-and-Mortar” Architecture

ACS Nano, Journal Year: 2018, Volume and Issue: 13(1), P. 649 - 659

Published: Dec. 19, 2018

The development of wearable strain sensors with simultaneous large stretchability (strain >55%) and high sensitivity (gauge factor >100) remains a grand challenge to this day. Drawing on inspiration from nature, nacre has demonstrated outstanding mechanical properties, especially combining strength toughness, which is due in part its delicate hierarchical layered architecture rich interfacial interactions. We demonstrate that based nacre-mimetic microscale "brick-and-mortar" can simultaneously achieve ultrahigh while performing well linearity, reliability, long-term durability, monotonicity. bioinspired sensor gauge >200 over range working strains up 83% achieved exceeding 8700 the region 76-83%. This successful combination attributed (1) derived amalgamation 2D titanium carbide (MXene) Ti3C2T x/1D silver nanowire "brick" poly(dopamine)/Ni2+ "mortar" (2) synergistic toughing effects interactions hydrogen coordination bonding, layer slippage, molecular chain stretching. behavior allows for controlled crack generation but also dissipate considerable loading energy promote stepwise propagation cracks stretching, guaranteeing significant comprehensive sensing performance. Moreover, employed monitor human activities under different motion states feasibility wearable, full-spectrum health monitoring systems.

Language: Английский

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Methods of synthesis, characteristics, and environmental applications of MXene: A comprehensive review

Chemosphere, Journal Year: 2021, Volume and Issue: 286, P. 131607 - 131607

Published: July 20, 2021

Language: Английский

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