Synthesis and characterization of silver nanoparticles doped reduced graphene oxide

Colloidal silver is used to reduce resistance of reduced graphene oxide (GO). The silver nanoparticles are dispersed on the surface of the GO and intercalated into the layers. The silver doped GO can also form a flexible free standing film with the addition of a polymer. Electrochemical properties of the samples were investigated and find that the pseudo capacitive properties increase in the silver doped samples, resulting in an increase of the capacitance. The resistance of silver doped sample decreases dramatically as well. It, therefore, could be a good candidative electrode for energy storage devices and electrochemical sensors. (C) 2015 Elsevier B.V. All rights reserved.