Investigating the performance of Ni-Mn LDH/CNT/rGO nanocomposite as electrode material in supercapacitor

The nanocomposite of Ni-Mn LDH on reduced graphene oxide/ MW-carbon nanotubes was prepared by using an easy synthetic method for the in situ growth of LDH crystals on a skeleton of CNT and rGO substrate. The structure of the synthetic nanocomposite was investigated by using instrumental methods such as FT-IR, XRD and Raman. We also investigated its electrochemical quantities by using Cyclic Voltammetry and Galvanostatic charge-discharge methods. Due to its unique structure, high conjugation length, specific surface area and high electrical conductivity, the synthetic nanocomposite can facilitate the electron transfer process and provide a favorable electrochemical performance. The synthetic electrode has the highest specific capacity at the scan rate of ۵ mV/s and can maintain more than ۹۳.۵% of its specific capacity in ۲۰۰۰ cycles. The results obtained from the investigation of electrochemical quantities show that the synthetic electrode material can show a significant potential for use in energy storage devices.

Keywords:

Supercapacitor , Double Layer Hydroxide , Carbon Nanotubes , Reduced Graphene Oxide