Fig. 6From: Few-Layer Graphene Sheet-Passivated Porous Silicon Toward Excellent Electrochemical Double-Layer Supercapacitor Electrodea Galvanostatic charge-discharge curves of the hybrid porous PSi electrode. b Capacitance retention of hybrid porous PSi electrode over 10,000 cycles. c CV curves of hybrid porous PSi electrode at 1st, 10,000th, and 20,000th cyclesBack to article page