2D Heterolayer-Structured MoSe-Carbon with Fast Kinetics for Sodium-Ion Capacitors.

Two-dimensional (2D) layered MoSe has been demonstrated to be a promising electrode material for new energy storage systems. However, its nature of poor conductivity and the undesirable interlayer spacing hinder its further application. In this paper, a general and simple plasma-enhanced chemical vapor deposition method is proposed to produce 2D heterolayer-structured MoSe-carbon (MoSe/C) with carbon atoms inserted in the MoSe layers.