Pulse Electric Current–Aided Reactive Sintering of High‐Purity <scp><scp>Zr</scp></scp>3<scp><scp>Al</scp></scp>3<scp><scp>C</scp></scp>5

Zhou, Jie; Qiu, Fagui; Shen, Lu; Li, Fangzhi; Xue, Jianming; Barsoum, Michel W.; Huang, Qing

doi:10.1111/jace.12766

Cited by 11 publications

(12 citation statements)

References 33 publications

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“…We prepared Zr 3 Al 3 C 5 by an in situ reactive pulsed electric current sintering (PECS) process (Supporting Information, Section S1) similar to our previous study . The exfoliation process of Zr 3 Al 3 C 5 was implemented by using concentrated hydrofloric (HF) acid.…”

Section: Figuresupporting

confidence: 81%

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

et al. 2016

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The room-temperature synthesis of an ew twodimensional (2D) zirconium-containing carbide,Z r 3 C 2 T z MXene is presented. In contrast to traditional preparation of MXene,the layered ternary Zr 3 Al 3 C 5 material instead of MAX phases is used as source under hydrofluoric acid treatment. The structural, mechanical, and electronic properties of the synthesized 2D carbide are investigated, combined with first-principles density functional calculations.Acomparative study on the structrual stability of our obtained 2D Zr 3 C 2 T z and Ti 3 C 2 T z MXenes at elevated temperatures is performed. The obtained 2D Zr 3 C 2 T z exhibits relatively better ability to maintain 2D nature and strucural integrity compared to Ti-based Mxene. The difference in structural stability under high temperature condition is explained by atheoretical investigation on binding energy.During the past decade,t wo-dimensional (2D) materials have attracted extensive attention owing to their high surface area to volume ratio,u nique electronic structures,a nd physiochemical properties derived from their low dimensionality. [1][2][3][4][5][6][7] Graphene,t he most studied 2D material with ultrahigh mechanical strength [8,9] and excellent electronic and thermal conductivities, [1,10,11] exhibits potential applications in electrochemical energy storage,t ransparent electrodes,a nd nano-composites.[12] However,owing to its intrinsic zero band gap and simple chemistry,a pplications of graphene are restricted in some aspects,s uch as field-effect transistors. [10] Thus,i nvestigations on other 2D materials are performed, especially for those 2D materials with two or more composition elements,s uch as metal oxides,l ayered metal chalcogenides (LMDCs), hexagonal boron nitride (BN), and hydroxides. [6,13] In recent years,an ew class of 2D materials, called MXenes,have emerged. [14] Members in this family are described by the general formula of M n+1 X n T z (wherein Mis an early transition metal, XisCand/or N, n is 1, 2, 3, and T z denotes surface terminated functional groups).[14] Generally, MXenes are produced by the selective etching of Al layers from their parental layered ternary MAX phases,alarge group which comprises more than 70 members. [15,16] Through selective etching of aluminum layers,experimental investigations have successfully identified about 10 different MXenes: Ti 3 C 2 T z ,Ti 2 CT z ,T a 4 C 3 T z ,TiNbCT z ,(V 0.5 ,Cr 0.5 ) 3 C 2 T z ,Ti 3 CNT z , Nb 2 CT z ,V 2 CT z ,a nd Nb 4 C 3 T z . [14,17] Most of the synthesized MXenes are metallic, [18] hydrophilic,a nd predicted to have high elastic moduli, implying potential application as reinforcement of polymer. [19,20] Theexistance of Dirac electrons in some MXenes has also been theoretically predicted.[21] Moreover, similar to graphene,M Xenes are promising candidate electrode materials for lithium-ion batteries and supercapacitors by facile intercalation of Li ions into the MXene layers.[ [29] has been synthesized through selective etching of gallium (Ga) from athin film of ...

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Section: Figuresupporting

confidence: 81%

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

et al. 2016

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“…[ 34] The exfoliation process of Zr3Al3C5 was implemented by using concentrated hydrofloric (HF) acid. The structural, electronic and elastic properties of the as-exfoliated nanosheets were investigated combined with first-principles density functional calculations.…”

Section: A New Two-dimensional Zirconium Carbide Mxene By Selective Ementioning

confidence: 99%

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

et al. 2016

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During the past decade, two-dimensional (2D) materials have attracted extensive attention due to their high surface area to volume ratio, unique electronic structures and physiochemical properties derived from their low dimensionality. [1][2][3][4][5][6][7] Graphene, the most studied 2D material with ultrahigh mechanical strength, [8][9] excellent electronic and thermal conductivities, [1,[10][11] exhibits potential applications in electrochemical energy storage, transparent electrodes, and nano-composites. [12] However, due to its intrinsic zero bandgap and simple chemistry, applications of graphene are restricted in some aspects, such as field effect transistors.[10] Thus, investigations on other 2D materials are performed, especially for those 2D materials with two or more composition elements, such as metal oxide, layered metal chalcogenides (LMDCs), hexagonal boron nitride(BN), hydroxides, etc. [6,13] In recent years, a new class of 2D materials called MXenes, have emerged [14] Members in this family are described by the general formula of Mn+1XnTz (wherein M is an early transition metal, X is C and/or N, n is 1, 2, 3, and Tz denotes surface terminated functional groups). [14] Generally, MXenes are produced by the selective etching of Al layers from their parental layered ternary MAX phases, a large group which comprises more than 70 members. [15][16] Through selective etching of aluminium layers, experimental investigations have successfully identified about 10 different MXenes, Ti3C2Tz, Ti2CTz, Ta4C3Tz, TiNbCTz, (V0.5,Cr0.5)3C2Tz, Ti3CNTz, Nb2CTz, V2CTz, and Nb4C3Tz. [14,17] Most of the synthesized MXenes are metallic, [18] hydrophilic, and predicted to have high elastic moduli, implying potential application as reinforcement of polymer. [19][20] The existance of Dirac electrons in some MXenes has also been theoretically predicted .[21] Moreover, similar to graphene, MXenes are promising candidate electrode materials for lithium-ion batteries and supercapacitors by facile intercalation of Li ions into the MXene layers. [22][23][24][25][26][27] Recently, considerable efforts have been made to further expand the family of 2D carbides. On the basis of a substitutional solid solution method, Gogotsi and Barsoum et al. [28] successfully synthesized Mo2TiC2Tz, Mo2Ti2C3Tz, and Cr2TiC2TzMXenes, and surface dependent electrochemical behaviors in the case of Mo2TiC2Tz have been revealed. Moreover, Mo2CTz MXene [29] has been synthesized through selective etching of gallium (Ga) from a thin film of the new ternary nanolaminated Mo2Ga2C. [30][31] Besides, large-area high-quality 2D α-Mo2C, WC, and TaC crystals have been fabricated by a chemical vapour deposition (CVD) process.[32] However, potential MXene compounds in materials systems where Al-containing MAX phases are not established, such as Hf2C and Zr2C, are yet to be produced.Herein, for the first time, we report the preparation of Zr-containing 2D carbide based on selective extraction of Al-C units from an alternative layered ternary Zr3Al3C5, benefiting from ...

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“…Then Inspired by the great success in synthesizing a large group of MXenes, researchers continued to focus their attention on the quest for novel Al-containing MAX phases. [162][163][164] Huang et al, [165] for the first time, presented the preparation of a Zr-containing 2D carbide…”

Section: Mxenesmentioning

confidence: 99%

Recent Advances in Growth of Novel 2D Materials: Beyond Graphene and Transition Metal Dichalcogenides

2018

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Since the discovery of graphene just over a decade ago, 2D materials have been a central focus of materials research and engineering because of their unique properties and potential of revealing intriguing new phenomena. In the past few years, transition metal dichalcogenides (TMDs) have also attracted considerable attention because of the intrinsically opened bandgap. The exceptional properties and potential applications of graphene and TMDs have inspired explosive efforts to discover novel 2D materials. Here, emerging novel 2D materials are summarized and recent progress in the preparation, characterization, and application of 2D materials is highlighted. The experimental realization methods for these materials are emphasized, while the large-area growth and controlled patterning for industrial productions are discussed. Finally, the remaining challenges and potential applications of 2D materials are outlined.

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Pulse Electric Current–Aided Reactive Sintering of High‐Purity Zr₃Al₃C₅

Cited by 11 publications

References 33 publications

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

Recent Advances in Growth of Novel 2D Materials: Beyond Graphene and Transition Metal Dichalcogenides

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Pulse Electric Current–Aided Reactive Sintering of High‐Purity Zr3Al3C5

Cited by 11 publications

References 33 publications

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al3C3 from Nanolaminated Zr3Al3C5

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al3C3 from Nanolaminated Zr3Al3C5

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al3C3 from Nanolaminated Zr3Al3C5

Recent Advances in Growth of Novel 2D Materials: Beyond Graphene and Transition Metal Dichalcogenides

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Pulse Electric Current–Aided Reactive Sintering of High‐Purity Zr₃Al₃C₅

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅

A Two‐Dimensional Zirconium Carbide by Selective Etching of Al₃C₃ from Nanolaminated Zr₃Al₃C₅