▎ 摘　　要

Exfoliated graphene oxide (GO) and polysiloxane were blended and pyrolyzed to synthesize free-standing SiOC-graphene composite papers. Characterization techniques reveal a layer-by-layer stacking of GO sheets and an increase in interlayer spacing due to the functionalization of SiOC with GO. This unique structure of the SiOC-graphene composite paper makes it suitable for energy storage applications in batteries and supercapacitors. A reversible electrochemical capacity similar to 750 mA h g(-1) which is stabilized to similar to 400 mA h g(-1) after 5 cycles was recorded when tested as a battery electrode. Also, a maximum specific capacitance of 75.72 F g(-1) at a current density of 6.7 A g(-1) was observed while studying its electrochemical performance as a supercapacitor.