Chemosphere, Год журнала: 2021, Номер 286, С. 131607 - 131607
Опубликована: Июль 20, 2021
Язык: Английский
Science, Год журнала: 2021, Номер 372(6547)
Опубликована: Июнь 10, 2021
A family of thin materials Two-dimensional (2D) have attracted interest because the unusual properties that emerge in these confined structures. There is a growing 2D metal carbides and nitrides known as MXenes contain an odd number layers which metals (M) sandwich carbon or nitrogen (X) layers. VahidMohammadi et al. reviewed progress synthesizing this library materials. Mixed-metal combinations can be used, well range surface terminations, making it possible to tune properties. However, there are still challenges improving synthesis methods developing techniques scaled up. Science , abf1581, issue p. eabf1581
Язык: Английский
Процитировано
2172
Science, Год журнала: 2020, Номер 369(6502), С. 446 - 450
Опубликована: Июль 24, 2020
Shields up! Specialized conductive materials are used to shield or block electromagnetic radiation such as microwaves radio waves either prevent the escape of stray interference from unwanted sources. Ideal should show high effective shielding while requiring a small volume mass material. Materials MXene family two-dimensional ceramics, where M is transition metal and X carbon nitrogen, have shown excellent properties. Iqbal et al. now even better somewhat unexpected performance nitride. Science , this issue p. 446
Язык: Английский
Процитировано
1184
Nanoscale Horizons, Год журнала: 2019, Номер 5(2), С. 235 - 258
Опубликована: Ноя. 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.
Язык: Английский
Процитировано
859
Advanced Materials, Год журнала: 2021, Номер 33(39)
Опубликована: Авг. 22, 2021
Abstract 2D transition metal carbides, nitrides, and carbonitrides, also known as MXenes, are versatile materials due to their adjustable structure rich surface chemistry. The physical chemical diversity has recognized MXenes a potential material with wide spectrum of application domains. Since the discovery in 2011, variety synthetic routes been proposed advancement toward large‐scale preparing methods for MXene nanosheets derivative products. Herein, critical synthesis aspects operating conditions that influence characteristics discussed detail. emerging etching including HF methods, situ HF‐forming electrochemical alkali molten salt well delamination strategies discussed. Considering future developments practical applications, antioxidation summarized. In summary, generalized overview protocols an outlook current challenges promising technologies preparation stable storage is provided.
Язык: Английский
Процитировано
848
Chemical Reviews, Год журнала: 2023, Номер 123(11), С. 6891 - 6952
Опубликована: Май 3, 2023
All forms of energy follow the law conservation energy, by which they can be neither created nor destroyed. Light-to-heat conversion as a traditional yet constantly evolving means converting light into thermal has been enduring appeal to researchers and public. With continuous development advanced nanotechnologies, variety photothermal nanomaterials have endowed with excellent harvesting capabilities for exploring fascinating prospective applications. Herein we review latest progresses on nanomaterials, focus their underlying mechanisms powerful light-to-heat converters. We present an extensive catalogue nanostructured materials, including metallic/semiconductor structures, carbon organic polymers, two-dimensional materials. The proper material selection rational structural design improving performance are then discussed. also provide representative overview techniques probing photothermally generated heat at nanoscale. finally recent significant developments applications give brief outlook current challenges future directions nanomaterials.
Язык: Английский
Процитировано
847
Physics Reports, Год журнала: 2020, Номер 848, С. 1 - 58
Опубликована: Янв. 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.
Язык: Английский
Процитировано
774
ACS Nano, Год журнала: 2020, Номер 14(7), С. 8368 - 8382
Опубликована: Июль 6, 2020
High-performance electromagnetic interference (EMI) shielding materials with ultraflexibility, outstanding mechanical properties, and superior EMI performances are highly desirable for modern integrated electronic telecommunication systems in areas such as aerospace, military, artificial intelligence, smart wearable electronics. Herein, ultraflexible mechanically strong aramid nanofiber–Ti3C2Tx MXene/silver nanowire (ANF-MXene/AgNW) nanocomposite papers double-layered structures fabricated via the facile two-step vacuum-assisted filtration followed by hot-pressing approach. The resultant a low MXene/AgNW content of 20 wt % exhibit an excellent electrical conductivity 922.0 S·cm–1, properties tensile strength 235.9 MPa fracture strain 24.8%, effectiveness (EMI SE) 48.1 dB, high SE/t 10 688.9 dB·cm–1, benefiting from efficient structures, high-performance ANF substrate, extensive hydrogen-bonding interactions. Particularly, show maximum 3725.6 S·cm–1 SE ∼80 dB at 80 absorption-dominant mechanism owing to massive ohmic losses conductive layer, multiple internal reflections between Ti3C2Tx MXene nanosheets polarization relaxation localized defects, abundant terminal groups. Compared homogeneously blended ones, possess greater advantages electrical, mechanical, performances. Moreover, multifunctional thermal management Joule heating temperature supplied voltages, rapid response time, sufficient stability, reliability. results indicate that have potential applications
Язык: Английский
Процитировано
729
Journal of Materials Chemistry C, Год журнала: 2019, Номер 8(2), С. 387 - 440
Опубликована: Ноя. 20, 2019
The technological evolution has been progressing for centuries and will possibly increase at a higher rate in the 21st century.
Язык: Английский
Процитировано
717
ACS Nano, Год журнала: 2020, Номер 14(4), С. 5008 - 5016
Опубликована: Март 12, 2020
New ultrathin and multifunctional electromagnetic interference (EMI) shielding materials are required for protecting electronics against pollution in the fifth-generation networks Internet of Things era. Micrometer-thin Ti3C2Tx MXene films have shown best EMI performance among synthetic so far. Yet, effects elemental composition, layer structure, transition-metal arrangement on properties MXenes not been explored, despite fact that more than 30 different reported, many possible. Here, we report a systematic study 16 MXenes, which cover single-metal ordered double-metal carbide random solid solution M X elements. This is largest set compositions ever reported comparative study. Films with thicknesses ranging from nanometers to micrometers were produced by spin-casting, spray-coating, vacuum-assisted filtration. All achieved effective (>20 dB) micrometer-thick films. The effectiveness sprayed film thickness only ∼40 nm reaches 21 dB. Adjustable ratios A transfer matrix model was fit data highly conductive but could describe behavior low conductivity. work shows members large family can be used shielding, contributing designing ultrathin, flexible, benefiting specific characteristics individual MXenes.
Язык: Английский
Процитировано
676
Chemistry of Materials, Год журнала: 2020, Номер 32(5), С. 1703 - 1747
Опубликована: Фев. 10, 2020
2D transition metal carbides or nitrides, known as MXenes, are a new family of materials with close to 30 members experimentally synthesized and dozens more theoretically investigated. Because the abundant surface terminations, MXenes have been compounded various by multi-interactions. In addition prevented aggregation oxidation MXene flakes, MXene/polymer membranes exhibit outstanding mechanical, thermal, electrical properties due synergistic effects. However, relatively little is currently about special review on progress synthesis, properties, applications has not reported date. Herein, this Review starts an introduction synthesis MXenes. Then development will be discussed, which aims summarize approaches fabricating their fascinating properties. The focus then turns exciting potential in fields such filtration, electromagnetic interference (EMI) shielding, energy storage devices, wearable electronics, etc. Finally, outlooks perspectives for future challenges prospects provided.
Язык: Английский
Процитировано
581