过渡金属硫化物超级电容器电极材料的研究进展

Research progress on the electrode material of transition metal sulfide in the supercapacitor

过渡金属硫化物因种类丰富、价格低廉、具有多重氧化态和高理论比容量而成为一种性能优越的新型超级电容器电极材料。首先介绍了目前过渡金属硫化物主要的制备方法,如水热法、电化学方法。然后从两方面阐述了提升其电化学性能的途径:一方面可控合成具有多孔结构及大表面积的纳米材料,通过结构调控来提高离子传输效率;另一方面通过过渡金属硫化物与碳材料、金属氧化物、导电聚合物等其他储能材料间的复合,充分发挥不同材料间的协同作用。最后结合研究现状进一步提出未来过渡金属硫化物电极材料的发展方向和面临的挑战,为继续深入研究提供一定的指导作用。

The transition metal sulfide is a novel electrode material with superior performance in supercapacitor due to its great variety,low price,multiple oxidation states and high theoretical specific storage.It was first described in this article that the approaches of preparing transition metal sulfides,such as hydrothermal and electrochemical method.Furthermore,the pathways about enhancing the electrochemical property of transition metal sulfide in supercapacitors were introduced from two aspects.On the one hand,nanomaterials with porous structures and large surface area were controlled synthesized,which increased the efficiency of ion transmission through structural control.On the other hand,doping transition metal sulfide with other materials of energy storage including carbon materials,metal oxides,conductive polymers,synergetic effect of these materials could be presented completely.Finally,combined with the current research progress,it was proposed the developmental direction and challenges on the electrode materials of transition metal sulfide,which provided a guidance for their investigation in depth.