College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China
Abstract：Graphite oxide (GO) was prepared by a modified Hummer method, and three-dimensional redox graphene oxide-Ag/nickel foam (rGO-Ag/NF) composite prepared by dry immersion method. Its crystalline phase, morphology and composition were characterized, and electrochemical properties analyzed, such as galvanostatic charge-discharge and cyclic voltammogram. The results showed that rGO-Ag/NF composite had a porous structure in which the diameter of Ag particles was 200 nm. At the current density of 5 mA/cm2, its specific capacitance was estimated as 1.59 F/cm2. The composite also had a retention rate of 70% of its initial capacitance after 1000 cycles, indicating excellent recycling stability.
2016, Vol. 16 
