MXene: Nanoengineering and Application as Electrode Materials for Supercapacitors

Abstract

Excessive emissions of greenhouse gases have serious adverse effects on global climate. How to reduce carbon emissions become a global issue. Supercapacitors have the advantages of long cycle life, high power density and relatively low carbon emissions. Developing supercapacitor energy storage is an effective measure to build the reliable future energy system. In recent years, MXene materials gained great popularity in the field of supercapacitor energy storage applications due to their excellent hydrophilicity, electrical conductivity, high electrochemical stability and surface chemical tunability. However, the serious self-stacking problem of MXene limits its performance in energy storage. The development of advanced MXene materials is critical for next generation high-performance electrochemical energy storage devices. This paper reviewed research progress of MXene material in the field of supercapacitor energy storage. Firstly, the structure and energy storage properties of MXene were introduced, followed by the discussion of the energy storage mechanism of MXene; secondly, the nanoengineering of structure design to improve the performance of MXene electrode was analysed; then, the structure-performance relationship of MXene 第*期 丁 玲, 等: MXene 材料的纳米工程及其作为超级电容器电极材料的研究进展 2 composite materials and its latest research progress in the application of supercapacitor were summarized in detail;finally, the research and development trends of MXene as electrode for supercapacitor are broadly prospected.