MXenes: The Emergence
Development of new materials for energy has provided the opportunity to solve energy-related problems. It has also spawned many new industries and new storage systems. Electrochemical performance, safety and future development of batteries are all affected by their composition. Current electrode materials are low in conductivity and surface activity. Direct contact with electrolyte can cause material destruction, poor structure, electrochemical stability and material damage. All these factors adversely affect electrode material performance. Novoselov et al. Two-dimensional graphene microsheets exfoliated from graphite. Graphene exhibits excellent electrical conductivity and thermal conductivity. It offers excellent electrochemical performances and has great potential for new energy battery applications. Although graphene’s excellent performance has drawn much attention, two-dimensional materials are limited in their application due to its high production cost and difficulties. It is important to search for graphene-like materials in two dimensions that have better performance than graphene. They are easy to procure and safe.
Two-dimensional material refers to crystal materials having a thickness that is only one or few atoms. Due to its extraordinary electrical, magnetic, mechanical and thermal properties, graphene has been a hotspot for research. The discovery of MXenes-a two-dimensional new material has brought many more members into the two-dimensional family. Transition metal carbide and nitride called MXenes are prepared by selectively cutting the A layer of the MAX phases using a chemical liquidphase method. The structure of MXenes is very similar to graphene. Its general formula is Mn+1XnTz, where M is the transition metal element and X is either carbon or nitrogen. Tz is for functional groups like OH, O F, n=1,2,3. From the structure and performance point of view, MXene is a kind of “conductive hydrophilic clay”, Its unique advantages such as high electrical conductivity/thermal conductivity/specific surface area and good mechanical properties give MXene materials unique advantages in the electrochemical field. MXene has attracted significant attention due to its exceptional structure and performance.
V2AlC Prepares MXenes
V2AlC, a member the MAX phase is used for the manufacture of MXenes by etching. A method exists to mix the fluoride and hydrochloric alike uniformly. Next, add V2AlC powder and stir the mixture. Place the suspended solution under a controlled temperature. Once the reaction is complete, let it cool in the environment. Dry the rinsed suspension under vacuum at a specific temperature for a time. Two-dimensional vanadium carbonide can be prepared using this technique. This avoids the need to use highly toxic and corrosive hydrofluoric acid.
MXenes Has Broad Application Prospects
Because of its unique structure and properties, two-dimensional material plays an important part in energy storage, conversion, adsorption, separation. MXenes may be utilized in other fields as well. V2AlC etching MXenes gives good results, making them a highly promising MAX Phase material.
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