Two-dimensional MXene Ti3C2 produced by exfoliation of Ti3AlC2

Feng, Ailing; Yu, Yun; Wang, Yong; Jiang, Feng; Yang, Yu; Mi, Le; Song, Lixin

doi:10.1016/j.matdes.2016.10.053

Cited by 424 publications

(257 citation statements)

References 32 publications

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“…In this method, the in situ release of HF led to a high yield of 100% after an etching period of 45 h. A large fraction of (i.e., 70%) of the sheets were less than two layers with dimensions of 0.5–1.5 µm. Following this success, other fluoride‐based compounds, like NaHF 2 , KHF 2 , and NH 4 HF 2 were studied and they displayed similar etching effect. Nonetheless, HF and related agents present serious drawbacks, since they are highly hazardous and difficult to handle.…”

Section: Synthesis Of 2d Materials With Designed Functionalitymentioning

confidence: 99%

Emerging 2D Materials Produced via Electrochemistry

et al. 2020

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2D materials are important building blocks for the upcoming generation of nanostructured electronics and multifunctional devices due to their distinct chemical and physical characteristics. To this end, large‐scale production of 2D materials with high purity or with specific functionalities represents a key to advancing fundamental studies as well as industrial applications. Among the state‐of‐the‐art synthetic protocols, electrochemical exfoliation of layered materials is a very promising approach that offers high yield, great efficiency, low cost, simple instrumentation, and excellent up‐scalability. Remarkably, playing with electrochemical parameters not only enables tunable material properties but also increases the material diversities from graphene to a wide spectrum of 2D semiconductors. Here, a succinct and critical survey of the recent progress in this research direction is presented, comprising the strategic design, exfoliation principles, underlying mechanisms, processing techniques, and potential applications of 2D materials. At the end of the discussion, the emerging trends, challenges, and opportunities in real practice are also highlighted.

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Section: Synthesis Of 2d Materials With Designed Functionalitymentioning

confidence: 99%

Emerging 2D Materials Produced via Electrochemistry

et al. 2020

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“…Figure A shows the synthesis process to prepare PVP‐Sn IV @Ti 3 C 2 nanocomposites. The difference between the synthesis routes to PVP‐Sn IV Ti 3 C 2 and undecorated Ti 3 C 2 lies in Sn 4+ insertion through polyvinylpyrrolidone after LiOH alkalization, which is not involved in the conventional Ti 3 C 2 synthesis process and is an improvement over a previous method . In the process, etched Ti 3 C 2 is first immersed into a LiOH solution (1 m ) to expand its interlayer spacing and to facilitate substitution of the F groups for OH groups .…”

Section: Energy Storagementioning

confidence: 99%

“…The difference between the synthesis routes to PVP-Sn IV Ti 3 C 2 and undecorated Ti 3 C 2 lies in Sn 4 + insertion through polyvinylpyrrolidone after LiOH alkalization, which is not involved in the conventional Ti 3 C 2 synthesis process and is an improvement over ap revious method. [60] In the process, etched Ti 3 C 2 is first immersed into aL iOH solution (1 m)t oe xpand its interlayer spacing [61] and to facilitates ubstitution of the Fg roups for OH groups. [62] After alkalization, treated Ti 3 C 2 (alk-Ti 3 C 2 )i se ntirely immersed into aS nCl 4 solution containing PVP.A sar esult of ione xchange [63] and electrostatic interactions, the Sn 4 + ions are immobilized on the surface andi ntercalate into the interlayers of Ti 3 C 2 .F igure1B shows the volumetric capacity of Ti 3 C 2 after decoration.…”

Section: Lithium-ion Battery Electrodementioning

confidence: 99%

Functional MXene Materials: Progress of Their Applications

Wang

Cao

et al. 2018

Chemistry An Asian Journal

188

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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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“…More recently, Li et al utilized an alkali to produce multilayer Ti 3 C 2 T x MXene. [8,[10][11][12][31][32][33][34][35][36][37][38][39][40][41][42][43] In addition to the aforementioned prevailing wet etching methods, other methods, such as chemical vapor deposition (CVD), molten-salt approaches and salt-templated approaches, have also been examined for preparing MXenes. Differing from the previous fluoride-containing acidic etching routes, the process is free of fluorine, and surface terminations are only OH and O groups.…”

Section: Introductionmentioning

confidence: 99%

2D Metal Carbides and Nitrides (MXenes) as High‐Performance Electrode Materials for Lithium‐Based Batteries

Tang

Guo

et al. 2018

Advanced Energy Materials

382

190

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Tremendous efforts are devoted to developing advanced electrode materials with superior electrochemical performance, high energy density, and high power density for energy storage and conversion. Two‐dimensional (2D) materials, owing to their unique properties, have shown great potential for energy storage. Following the discovery of graphene, a new family of 2D transition metal carbides/nitrides, MXenes, derived from MAX phase precursors, have attracted extensive attention in recent years. The superior physical and chemical properties of MXenes include high mechanical strength, excellent electrical conductivity, multiple possible surface terminations, hydrophilic features, superior specific surface area, and the ability to accommodate intercalants. When applied as electrodes in lithium‐based batteries, MXenes have demonstrated excellent performance. In this progress report, the authors summarize the recent advances of MXenes and MXene‐based composites in terms of synthesis strategies, morphology engineering, physical/chemical properties, and their applications in lithium‐ion batteries and lithium–sulfur batteries. Furthermore, challenges and perspectives for MXenes and MXene‐based composites for lithium‐based energy storage devices are also outlined.

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Two-dimensional MXene Ti3C2 produced by exfoliation of Ti3AlC2

Cited by 424 publications

References 32 publications

Emerging 2D Materials Produced via Electrochemistry

Emerging 2D Materials Produced via Electrochemistry

Functional MXene Materials: Progress of Their Applications

2D Metal Carbides and Nitrides (MXenes) as High‐Performance Electrode Materials for Lithium‐Based Batteries

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