Abstract
Graphene/Co(OH)₂ nanowire composite films were successfully synthesized using a simple three-step treatment, and the effect of the Co(OH)₂ nanowire content on the electrochemical properties of the composite films was studied in this study. One-dimensional Co(OH)₂ nanowires were homogeneously embedded and dispersed between the prepared graphene papers, forming a layered graphene/Co(OH)₂ nanowire hybrid structure. These composite films exhibited better electrochemical properties than the previously reported graphene composites with carbon spheres such as graphene/CNT composites. These graphene composites were fabricated using the same method we used in this study but without the addition of Co(OH)₂ nanowires. The addition of a small amount of Co(OH)₂ to reduced graphene oxide (rGO) (RGO:Co(OH)₂=5:1) yielded thick paper-like rGO/Co(OH)₂ sandwiches, which showed an excellent specific capacitance of 1032.57 Fg-1 at a scan rate of 5 mVs-1. These results indicate the potential of these composites for the development of highly capacitive energy storage devices for practical applications.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
