Titanium carbide (MXene) nanosheets as promising microwave absorbers

Qing, Yuchang; Zhou, Weihua; Luo, Fa; Zhu, Dongmei

doi:10.1016/j.ceramint.2016.07.150

Cited by 338 publications

(148 citation statements)

References 42 publications

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“…[138] This is because MXenes have hydrophilics urface properties andt wo-dimensional layered atomic structures, and therefore, they can be effortlessly micromachined to accommodated ifferent geometries with large contact surfaces. [139,140] Furthermore, the application of MXenes in water purification, [141][142][143] antimicrobial and microwave absorbers, [144] and othera pplications has been reported in recenty ears.…”

Section: Othersmentioning

confidence: 99%

Functional MXene Materials: Progress of Their Applications

Wang

Cao

et al. 2018

Chemistry An Asian Journal

189

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Nowadays, two-dimensional materials have many applications in materials science. As a novel two-dimensional layered material, MXene possesses distinct structural, electronic, and chemical properties; thus, it has potential applications in many fields, including battery electrodes, energy storage materials, sensors, and catalysts. Up to now, more than 70 MAX phases have been reported. However, in contrast to the variety of MAX phases, the existing MXene family merely includes Ti C, Ti C , (Ti , Nb ) C, (V , Cr ) C , Nb C, Ti CN, Ta C , V C, and Nb C . Among these materials, the Ti C T MXene exhibits prominently high volumetric capacitance, and the rate at which it transports electron is suitable for electrode materials in batteries and supercapacitors. Hence, Ti C T is commonly utilized as an electrode material in ion batteries such as Li , Na , K , Mg , Ca , and Al batteries. What is more, Ti C has the biggest specific surface area among all of these potential MXene phases, and therefore, Ti C has remarkably high gravimetric hydrogen storage capacities. In addition, Ti CO materials display extremely high activity for CO oxidation, which makes it possible to design catalysts for CO oxidation at low temperatures. Furthermore, Ti C T with O, OH, and/or F terminations can be used for water purification owing to excellent water permeance, favorable filtration ability, and long-time operation ability. This review supplies a relatively comprehensive summary of various applications of MXenes over the past few years.

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Section: Othersmentioning

confidence: 99%

Functional MXene Materials: Progress of Their Applications

Wang

Cao

et al. 2018

Chemistry An Asian Journal

189

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“…Recently, 2D transition metal carbide (MXene) has shown excellent shielding performance in the microwave regime . Among all, a thin film of Ti 3 C 2 T x MXenes (≈1.5 µm) can block 99.99% EM waves showing the highest EMI shielding efficiency (EMI SE) for materials of comparable thicknesses .…”

mentioning

confidence: 99%

Enhanced Terahertz Shielding of MXenes with Nano‐Metamaterials

Choi

Shahzad

Bahk

et al. 2018

Advanced Optical Materials

174

138

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Terahertz (THz) shielding becomes increasingly important with the growing development of THz electronics and devices. Primarily materials based on carbon nanostructures or polymer–carbon nanocomposites have been explored for this application. Herein, significantly enhanced THz shielding efficiencies for 2D titanium carbide (Ti3C2 MXene) thin films with nanoscale THz metamaterials are presented. Nanoscale slot antenna arrays with strong resonances at certain frequencies enhance THz electromagnetic waves up to three orders of magnitude in transmission, which in turn enormously increases the shielding performance in combination with MXene films. Drop‐casting of a colloidal solution of MXene (a few micrograms of dry material) can produce an ultrathin film (several tens of nanometers in thickness) on a slot antenna array. Consequently, THz waves strongly localized in the near‐field regime by the slot antenna undergo enhanced absorption through the film with a magnified effective refractive index. Finally, the combination of an ultrathin MXene film and a nano‐metamaterial shows excellent shielding performance in the THz range.

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“…However, to date, by far the most studied remains the first MXene discovered: Ti 3 C 2 T x [13]. This material has shown outstanding performance as an electrode material for supercapacitors and Li battery electrodes [17][18][19][20], electromagnetic shielding [21][22][23], among a slew of other applications [24,25].…”

Section: Introductionmentioning

confidence: 99%

Transparent, conductive solution processed spincast 2D Ti₂CT_x (MXene) films

Ying

Dillon

Fafarman

et al. 2017

Materials Research Letters

138

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Herein, we spincast aqueous colloidal Ti 2 CT x (MXene) solutions into conductive, transparent films with figures of merit (FOM), that are as good as Ti 3 C 2 T x or un-doped chemically vapor-deposited graphene. When normalized by the number of transition metal atoms, the FOM is the highest ever reported for a MXene film. At about 2.7 × 10 5 cm -1 the absorbance coefficient of Ti 2 CT x is quite comparable to that of Ti 3 C 2 T x . Quantitative relationships between film properties-conductance and transparency-and colloidal solution concentration and spin speeds are developed providing a road map for future work. IMPACT STATEMENTIn a first, we spincast aqueous colloidal Ti 2 CT x (MXene) solutions into conductive, transparent films with figures of merit-5-that are as good as Ti 3 C 2 T x or un-doped CVD graphene. ARTICLE HISTORY

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Titanium carbide (MXene) nanosheets as promising microwave absorbers

Cited by 338 publications

References 42 publications

Functional MXene Materials: Progress of Their Applications

Functional MXene Materials: Progress of Their Applications

Enhanced Terahertz Shielding of MXenes with Nano‐Metamaterials

Transparent, conductive solution processed spincast 2D Ti₂CT_x (MXene) films

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Titanium carbide (MXene) nanosheets as promising microwave absorbers

Cited by 338 publications

References 42 publications

Functional MXene Materials: Progress of Their Applications

Functional MXene Materials: Progress of Their Applications

Enhanced Terahertz Shielding of MXenes with Nano‐Metamaterials

Transparent, conductive solution processed spincast 2D Ti2CTx (MXene) films

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Product

Resources

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Transparent, conductive solution processed spincast 2D Ti₂CT_x (MXene) films