基于MXene的电化学关键功能材料（英文）

【作者】 王治宇； 邱介山； 于梦舟； 吴籼虹； 修陆洋； 钮姗姗；

【机构】 大连理工大学化工学院；

【摘要】 The MXenes have attracted rapidly raising interests due to a well combination of wide chemical and structural variety with a variety of attractive properties such as high conductivity,good mechanical stability,excellent hydrophily and rich surface chemistry enabled by chemical groups grafted.Together with ultralow work function and electronegative surfaces,MXenes show great potential as the supporting matrix to tailor the electrophilicity of the active materials and their properties for electrochemical energy storage and conversion.In this report,we firstly show the potential of MXene as both the matrix material and conductive agent for constructing the electrode materials with high volumetric energy density,high power output and long lifetime for lithium storage.Engineering the interfacial structure of MXene by guest nanostructures(e.g.,metal hydroxides,sulfide,carbide) further leads to highly active electrocatalysts for electrochemical water electrolysis.We also demonstrate the construction of MXene-based 3 D architectures with aggregation-resistant and kinetics-favorable properties,which act as ideal material platform for engineering high-performance electrode/electrocatalyst.更多还原

【Abstract】 The MXenes have attracted rapidly raising interests due to a well combination of wide chemical and structural variety with a variety of attractive properties such as high conductivity, good mechanical stability, excellent hydrophily and rich surface chemistry enabled by chemical groups grafted. Together with ultralow work function and electronegative surfaces, MXenes show great potential as the supporting matrix to tailor the electrophilicity of the active materials and their properties for electrochemical energy storage and conversion. In this report, we firstly show the potential of MXene as both the matrix material and conductive agent for constructing the electrode materials with high volumetric energy density, high power output and long lifetime for lithium storage. Engineering the interfacial structure of MXene by guest nanostructures(e.g., metal hydroxides, sulfide, carbide) further leads to highly active electrocatalysts for electrochemical water electrolysis. We also demonstrate the construction of MXene-based 3 D architectures with aggregation-resistant and kinetics-favorable properties, which act as ideal material platform for engineering high-performance electrode/electrocatalyst.更多还原