Xiong Dongbin, Li Xifei, Bai Zhimin, Lu Shigang
Institute of Advanced Electrochemical Energy, Xi'an University of Technology, Xi'an, 710048, China.
Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, College of Physics and Materials Science, Tianjin Normal University, Tianjin, 300387, China.
Small. 2018 Apr;14(17):e1703419. doi: 10.1002/smll.201703419. Epub 2018 Feb 5.
Ti C T , a typical representative among the emerging family of 2D layered transition metal carbides and/or nitrides referred to as MXenes, has exhibited multiple advantages including metallic conductivity, a plastic layer structure, small band gaps, and the hydrophilic nature of its functionalized surface. As a result, this 2D material is intensively investigated for application in the energy storage field. The composition, morphology and texture, surface chemistry, and structural configuration of Ti C T directly influence its electrochemical performance, e.g., the use of a well-designed 2D Ti C T as a rechargeable battery anode has significantly enhanced battery performance by providing more chemically active interfaces, shortened ion-diffusion lengths, and improved in-plane carrier/charge-transport kinetics. Some recent progresses of Ti C T MXene are achieved in energy storage. This Review summarizes recent advances in the synthesis and electrochemical energy storage applications of Ti C T MXene including supercapacitors, lithium-ion batteries, sodium-ion batteries, and lithium-sulfur batteries. The current opportunities and future challenges of Ti C T MXene are addressed for energy-storage devices. This Review seeks to provide a rational and in-depth understanding of the relation between the electrochemical performance and the nanostructural/chemical composition of Ti C T , which will promote the further development of 2D MXenes in energy-storage applications.
Ti C T是二维层状过渡金属碳化物和/或氮化物新兴家族（称为MXenes）中的典型代表，它具有多种优势，包括金属导电性、塑性层结构、小带隙以及功能化表面的亲水性。因此，这种二维材料在储能领域受到了广泛研究。Ti C T的组成、形态和织构、表面化学以及结构构型直接影响其电化学性能，例如，将精心设计的二维Ti C T用作可充电电池阳极，通过提供更多化学活性界面、缩短离子扩散长度以及改善面内载流子/电荷传输动力学，显著提高了电池性能。Ti C T MXene在储能方面取得了一些最新进展。本综述总结了Ti C T MXene在合成及电化学储能应用（包括超级电容器、锂离子电池、钠离子电池和锂硫电池）方面的最新进展。文中探讨了Ti C T MXene在储能器件方面当前面临的机遇和未来挑战。本综述旨在对Ti C T的电化学性能与纳米结构/化学成分之间的关系提供合理而深入的理解，这将推动二维MXenes在储能应用中的进一步发展。
