Title[International Journal] High-performance N-doped MWCNT/GO/cellulose hybrid composites for supercapacitor electrodes
AuthorsSivalingam Ramesh, Arumugam Sivasamy, Heung Soo Kim* and Joo-Hyung Kim*
A nitrogen-doped MWCNT/GO/cellulose hybrid composite was prepared via an in situ hydrothermal
process, and its electrochemical performance was evaluated by conducting cyclic voltammetry (CV). The
synthesized ternary hybrid nanocomposite was characterized using Raman, X-ray diffraction (XRD), X-ray
photoelectron spectroscopy (XPS), field emission transmission electron microscope (FE-TEM), and
thermogravimetric (TGA) analysis. The structural and morphological properties of the hybrid composite
show it is possible to control the morphology and achieve thermal stability for hybrid nanocomposites.
The electrochemical characteristics of the hybrid composites were investigated via cyclic voltammetry,
Galvanostatic charge–discharge and electrochemical impedance spectroscopy. The hybrid composites
were capable of delivering a high specific capacitance of 264 F g1 at a current density of 6 A g1, and
this increases the energy density with an excellent cycling stability (98%) after 10 000 continuous
charge–discharge cycles, this shows that the hybrid composites can be promising electrode materials to
achieve high-performance supercapacitors.