increasing supercapacitor features using reduced graphene oxide@phosphorus

Supercapacitors have attracted much attention in the field of electrochemical energy storage. however, material preparation and stability limit their applications in many fields. herein, a reduced graphene oxide@phosphorus (rgo@p) electrode was prepared using a simple inexpensive method. the new graphene structure (rgo@p) was characterized by x-ray di􀀀raction, fourier transform infrared spectroscopy, scanning electron microscopy and energy-dispersive x-ray spectroscopy. electrode showed excellent performances (307 f g−1), which seem to be the highest among many other rgo@p-based electrodes reported so far. it also has an excellent cyclic stability up to 95% after 600 consecutive charge/discharge tests. so, the ease of the synthesis method and excellent performance of the prepared electrode materials mat have significant potential for energy storage applications.