MXenes公司
超级电容器
假电容
材料科学
储能
电容器
纳米技术
电化学
电气工程
工程类
化学
电极
电压
物理
量子力学
功率(物理)
物理化学
作者
Qizhen Zhu,Jiapeng Li,Patrice Simon,Bin Xu
标识
DOI:10.1016/j.ensm.2020.11.035
摘要
MXenes, a family of 2D transition metal carbides/nitrides with a general formula of Mn+1XnTx (n=1∼3), show promising potential for energy storage applications owing to their 2D lamellar structure, impressive density, metallic-like conductivity, tunable terminations and intercalation pseudocapacitance charge storage mechanism. Various combinations of transition metals, C and/or N, as well as different n layers result in a broad range of MXenes, but only about a small number have been prepared and used for capacitive energy storage applications (supercapacitors) so far, with Ti3C2Tx being the most studied one. This review summarizes the recent advances, achievements and challenges of MXenes for supercapacitors. The preparation methods, composition versatility, material and electrode architectures, chemical modification and hybridization with other active materials of MXenes are presented. Moreover, the electrochemical characterizations and energy storage mechanisms of MXenes in aqueous and non-aqueous electrolytes are discussed, as well as the preparation of flexible and printable MXene-based electrodes and devices. Finally, perspective is also given, providing guidance for the future development of MXenes with advanced performances for designing the next generation of supercapacitors.
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