Molybdenum-doped few-layered SnS2 architectures with enhanced electrochemical supercapacitive performance

Abstract

Molybdenum doped few-layered SnS₂ (m-SnS₂) architectures have been fabricated via a facile hydrothermal route. The results indicate that the resultant m-SnS₂ is composed of numerous few-layered nanosheets and possesses a hierarchical architecture with mesoporous features. When evaluated as an electrode material for supercapacitors, the m-SnS₂ architecture exhibits obviously enhanced electrochemical performance with high specific capacitance, good cycling stability and rate capability in comparison with the bare SnS₂ sample. It is believed that the superior electrochemical properties can be attributed to the robust mesoporous architectures with large surface area, the few-layered nature as well as other positive factors such as expanded interlayer space and rich dislocations which originate from the molybdenum doping.