Abstract:We report on the preparation of two‐dimensional (2D) Ti3C2 and its friction and wear properties. Laminated Ti3AlC2 was synthesized by pressureless sintering using Ti, Al, and graphite, followed by HF exfoliation and sonication treatment to form 2D‐layered Ti3C2, which exhibited individual layer or stack of several layers. Analysis of microstructure and composition was used to confirm the successful exfoliation of laminated Ti3AlC2. The tribological behaviors of the as‐prepared 2D Ti3C2 as a lubrication additiv… Show more
“…Ti 3 AlC 2 phase was fully vanished after chemical etched using a HF solution for 20 hours (figure 3b) and replaced by rhombohedral Ti 3 C 2 phase. This result is also supported by other researchers [8,15,[18][19] in this field based on the reactions of the HF solutions with Ti 3 AlC 2 which include:…”
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Abstract.A layered MAX phase of Ti 3 AlC 2 was synthesized through pressureless sintering (PLS) the initial powder of TiH 2 /Al/C without preliminary dehydrogenation under argon atmosphere at 1350°C. An elegant exfoliations approach was used to prepare a twodimensional (2D) metal carbide Ti 3 C 2 from layered MAX phase by removing A layer by chemical etching. The use of PLS method instead of any pressure assistance method such as hot isostatic press (HIP) and hot press (HP) lowered the cost of synthesis. Recently, some unique potential of Ti 3 C 2 has been discovered leads to the proposal of potential application, mostly on electronic devices. Morphology and structural analysis was used to confirm the successful of this research.
IntroductionTwo-dimensional (2D) materials are well known materials with unique properties in studies of materials engineering. 2D materials such as graphene defines as single atomic plane materials with 0.34 nm thickness [1]. These materials also known to have very high aspect ratio [2]. In different studies, some researcher state the range of materials to be 2D materials is 1 layer to 10 layers, and more than 10 layers is considered as 3D materials [3]. Graphene is the example of comprised 2D materials with atomically thin layers of sp 2 -bonded carbon atoms connected by aromatic in-plane bonds. These 2D materials has only one-atom thickness and isolated from graphite in 2004 by Novoselov et al. [4]. Since the outstanding electronic properties of graphene has been discovered, other 2D materials such as hexagonal boron nitrides [5], transition metal dichalcogenides (TMDs) [6], metal oxides and hydroxides, have attracted much renewed attention. Graphene shows tremendous attraction to researchers from different fields and has risen as the most exciting star in materials science during the past several years. Its exceptional properties, such as half-integer quantum Hall effect, ambipolar electric field effect, extremely high carrier mobility, high thermal conductivity, high specific surface area, and the highest strength ever measured, provide a fertile ground for the possible implementation of graphene in nano-devices for a large variety of applications, and a lot of recent reviews have been directed towards its synthesis, properties, and functionalized applications [7].In 2011, a fascinating idea [8] was proposed to prepare freestanding graphene-like carbides (and nitrides) not from their 3D parent binary phases, but from ternary layered MAX phases (known also as
“…Ti 3 AlC 2 phase was fully vanished after chemical etched using a HF solution for 20 hours (figure 3b) and replaced by rhombohedral Ti 3 C 2 phase. This result is also supported by other researchers [8,15,[18][19] in this field based on the reactions of the HF solutions with Ti 3 AlC 2 which include:…”
View the article online for updates and enhancements.
Abstract.A layered MAX phase of Ti 3 AlC 2 was synthesized through pressureless sintering (PLS) the initial powder of TiH 2 /Al/C without preliminary dehydrogenation under argon atmosphere at 1350°C. An elegant exfoliations approach was used to prepare a twodimensional (2D) metal carbide Ti 3 C 2 from layered MAX phase by removing A layer by chemical etching. The use of PLS method instead of any pressure assistance method such as hot isostatic press (HIP) and hot press (HP) lowered the cost of synthesis. Recently, some unique potential of Ti 3 C 2 has been discovered leads to the proposal of potential application, mostly on electronic devices. Morphology and structural analysis was used to confirm the successful of this research.
IntroductionTwo-dimensional (2D) materials are well known materials with unique properties in studies of materials engineering. 2D materials such as graphene defines as single atomic plane materials with 0.34 nm thickness [1]. These materials also known to have very high aspect ratio [2]. In different studies, some researcher state the range of materials to be 2D materials is 1 layer to 10 layers, and more than 10 layers is considered as 3D materials [3]. Graphene is the example of comprised 2D materials with atomically thin layers of sp 2 -bonded carbon atoms connected by aromatic in-plane bonds. These 2D materials has only one-atom thickness and isolated from graphite in 2004 by Novoselov et al. [4]. Since the outstanding electronic properties of graphene has been discovered, other 2D materials such as hexagonal boron nitrides [5], transition metal dichalcogenides (TMDs) [6], metal oxides and hydroxides, have attracted much renewed attention. Graphene shows tremendous attraction to researchers from different fields and has risen as the most exciting star in materials science during the past several years. Its exceptional properties, such as half-integer quantum Hall effect, ambipolar electric field effect, extremely high carrier mobility, high thermal conductivity, high specific surface area, and the highest strength ever measured, provide a fertile ground for the possible implementation of graphene in nano-devices for a large variety of applications, and a lot of recent reviews have been directed towards its synthesis, properties, and functionalized applications [7].In 2011, a fascinating idea [8] was proposed to prepare freestanding graphene-like carbides (and nitrides) not from their 3D parent binary phases, but from ternary layered MAX phases (known also as
“…In fields other than electrochemistry, MXenes' unique structures and properties provide the material class with many other potential applications, including adsorbents [16,65], hydrogen storage media [66,67], catalyst supporters [21,68,69], additives [70,71], and many others [72][73][74][75]. However, many of these applications are still hypothetical or at the fundamental stage.…”
Section: Other Applicationsmentioning
confidence: 97%
“…MXene species are also potential additives. Yang et al tested the feasibility of using Ti 3 C 2 T x as a lubrication additive in base oils [70]. Layered Ti 3 C 2 T x could greatly enhance the friction-reduction and anti-friction properties of base oils, especially under high applied loads.…”
Owing to the exceptional properties of graphene, intensive studies have been carried out on novel two-dimensional (2D) materials. In the past several years, an elegant exfoliation approach has been used to successfully create a new family of 2D transition metal carbides, nitrides, and carbonitrides, termed MXene, from layered MAX phases. More recently, some unique properties of MXene have been discovered leading to proposals of potential applications. In this review, we summarize the latest progress in development of MXene from both a theoretical and experimental view, with emphasis on the possible applications.
“…Ti 3 C 2 is a member of a family of novel two-dimensional carbides or carbonitrides called MXenes, which are synthesized by etching an A-group element from the corresponding MAX phase using hydrofluoric acid [18]. Because of its special laminated structure, Ti 3 C 2 has been widely researched in many fields [19][20][21][22][23]. However, the resistance to oxidization of Ti 3 C 2 is not good.…”
Ti3C2/TiO2/CuO nanocomposites were synthesized via the decomposition of a mixture of Ti3C2 (a novel two-dimensional carbide) and cupric nitrate under an argon atmosphere. The morphology and structures of the obtained samples were characterized. X-ray diffraction and energy dispersive spectrometer analysis indicate that the sample is composed of Ti3C2, anatase-TiO2, and CuO. Scanning electron microscopy images show that CuO and TiO2 nanoparticles were evenly distributed on the surface of Ti3C2. The particles size increased with an increase in the cupric nitrate content. Photocatalytic degradation of methyl orange shows that the Ti3C2/TiO2/CuO nanocomposite has good photocatalytic degradation efficiency. A possible photocatalytic mechanism of the Ti3C2/TiO2/CuO nanocomposites was proposed. The data indicated that CuO and Ti3C2 effectively promote the separation of photoelectrons from vacancies.
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