Synthesis and electrochemical performance of Ti3C2Tx with hydrothermal process

Wang, Libo; Zhang, Heng; Wang, Bo; Shen, Changjie; Zhang, Chuanxiang; Hu, Qianku; Zhou, Aiguo; Liu, Baozhong

doi:10.1007/s13391-016-6088-z

Cited by 313 publications

(119 citation statements)

References 44 publications

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“…Ti 3 C 2 T x is the most reported MXene for supercapacitors due to its metallic conductivity as well as abundant pseudocapacitive sites for fast, reversible redox reactions . The areal capacitance can be described according to the equation: C / A = C / M × M / A , where C / A is areal capacitance (mF cm −2 ), C / M is specific capacitance (F g −1 ), and M / A is mass loading (mg cm −2 ).…”

Section: High‐performance Supercapacitorsmentioning

confidence: 99%

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Zhang

et al. 2019

Energy & Environ Materials

416

181

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A family of 2D transition metal carbides and nitrides known as MXenes has received increasing attention since the discovery of Ti3C2 in 2011. To date, about 30 different MXenes with well‐defined structures and properties have been synthesized, and many more are theoretically predicted to exist. Due to the numerous assets including excellent mechanical properties, metallic conductivity, unique in‐plane anisotropic structure, tunable band gap, and so on, MXenes rapidly positioned themselves at the forefront of the 2D materials world and have found numerous promising applications. Particular interest is devoted to applications in electrochemical energy storage, whereby 2D MXenes work either as electrodes, additives, separators, or hosts. This review summarizes recent advances in the synthesis, fundamental properties and composites of MXene and highlights the state‐of‐the‐art electrochemical performance of MXene‐based electrodes/devices. The progresses in the field of supercapacitors and Li‐ion batteries, Li‐S batteries, Na‐ and other alkali metal ion batteries are reviewed, and current challenges and new opportunities for MXenes in this surging energy storage field are presented. In the focus of interest is the possibility to boost device‐level performance, particularly that of rechargeable batteries, which are of utmost importance in future energy technologies. Very recently, the 2019 Nobel Prize in Chemistry was awarded to the inventors of the Li‐ion battery. For sure, this will provide an additional stimulation to study fundamental aspects of electrochemical energy storage.

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Section: High‐performance Supercapacitorsmentioning

confidence: 99%

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Zhang

et al. 2019

Energy & Environ Materials

416

181

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“…Recently, by removing A elements from MAX phases, two‐dimensional carbides were be made, which have graphene‐like structure and named as MXenes . By now, there are around 30 MXenes .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and oxidation resistance of V₂AlC powders by molten salt method

Wang

Zhou

et al. 2017

Int J Applied Ceramic Tech

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Herein, ternary carbide V2AlC was synthesized by molten salt method from elemental powders with molar ratio of V:Al:C=2:1.2:1 and same mass of NaCl. According to thermal analysis of the starting mixture, at 800°C, NaCl melts to form ionic liquid environment for the formation reaction of V2AlC, which starts at the temperature above 1050°C. The existence of NaCl in starting mixture results in the synthesis of V2AlC at 1050°C. And following annealing at 1400°C can remove the impurities of Al23V4 and C to synthesize pure V2AlC. Without NaCl, V2AlC cannot be synthesized at 1050°C and V2AlC synthesized at 1400°C is not pure. For the purpose to measure oxidation resistance of V2AlC samples, as‐synthesized V2AlC powders were pressed to cylinder shape (Φ10 mm×2 mm) and the cylinders (relative density of 82.7%) were heated in air. At temperature below 400°C, the oxidation was not obvious. At 650°C, a rough film composed of V2O5 and Al2O3 was formed and cover the surface of V2AlC. The film resulted in good oxidation resistance of V2AlC. At 800°C, the rough film transformed to needle‐like crystals, which were mainly composed of V2O5. The oxidation resistance became very bad. V2AlC can be completely oxidized to form V2O5 and Al2O3.

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“…The O1s peaks at 529.5 eV were assigned to TiO (TiO 2 ), whereas 531.1, 532.2, and 533.7 eV were allotted to TiC(OH) x , Al 2 O 3, and H 2 O, respectively (Figure (e)). Moreover, the presence of TiO 2 confirmed that slight oxidation of the surface . Hence, MXene formed with the formula of Ti 3 C 2 (F,OH).…”

Section: Resultsmentioning

confidence: 68%

“…The complete removal of 104 peak indicated that destruction of Ti 3 AlC 2 and introduction of surface functional groups (Figure (b)). The characteristic peaks at 13.0° and 35.9° could not be observed that confirmed the absence of Ti 3 AlC 2 . Hence, the synthetic conditions were used most suitable to obtained a high purity of MAX phase.…”

Section: Resultsmentioning

confidence: 84%

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Fabrication of Nonwetting Flexible Free‐Standing MXene‐Carbon Fabric for Electromagnetic Shielding in S‐Band Region

Raagulan

Braveenth

Jang

et al. 2018

Bulletin Korean Chem Soc

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MXene and nonwoven carbon fabric are good candidate for flexible, light‐weight electromagnetic interference (EMI) shielding fabric. The prepared composite was characterized using X‐ray diffraction, X‐ray photo electron spectroscopy, energy‐dispersive X‐ray spectroscopy, scanning electron microscope, mapping, and Raman spectroscopy. The 15 times coated composite displayed a contact angle of 123°, a wetting energy of −39.86 mN/m, a spreading coefficient of −112.66 mN/m, and 32.94 mN/m work of adhesion. The fabricated composites inhibited thermal degradation until 235 °C. The composite revealed an excellent electric conductivity of 8.5 S/cm with a sheet resistance of 6.5 Ω/sq. The composite showed a maximum EMI shielding of 43.2 dB at 2.3 GHz with 8534.7 dB cm2/g. The composite displays better outlook application areas such as aviation, portable electronics, radars, aerospace, and military.

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Synthesis and electrochemical performance of Ti3C2Tx with hydrothermal process

Cited by 313 publications

References 44 publications

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Synthesis and oxidation resistance of V₂AlC powders by molten salt method

Fabrication of Nonwetting Flexible Free‐Standing MXene‐Carbon Fabric for Electromagnetic Shielding in S‐Band Region

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Synthesis and electrochemical performance of Ti3C2Tx with hydrothermal process

Cited by 313 publications

References 44 publications

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Synthesis and oxidation resistance of V2AlC powders by molten salt method

Fabrication of Nonwetting Flexible Free‐Standing MXene‐Carbon Fabric for Electromagnetic Shielding in S‐Band Region

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Synthesis and oxidation resistance of V₂AlC powders by molten salt method