Open AccessPreparation of cobalt oxide on MXene/N, S-rGO surface for supercapacitors
Author(s) -
G Threepiriyamongkol,
Prasit Pattananuwat
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/600/1/012012
Subject(s) - cobalt , chronoamperometry , oxide , supercapacitor , cobalt oxide , materials science , electrochemistry , graphene , chemical engineering , capacitance , nanotechnology , chemistry , cyclic voltammetry , metallurgy , electrode , engineering
The electrodeposited cobalt oxide grown on MXene/N, S-rGO surface was successfully synthesised via chronoamperometry technique at -1.2 V. The effect of MXene/N, S-rGO surface and electrodeposition time of cobalt oxide on the electrocapacitive behaviour was investigated. SEM-EDS evidenance confirmed that the highly dense growth of flake-like structure of cobalt oxide with interconnected pores was obtained on MXene/N, S-rGO surface. The synergistic effect of cobalt oxide grown on MXene/N, S-rGO surface can enhance the electrochemical properties with the highest specific capacitance of 608.3 F/g at 1 A/g (628.8 F/g at 10 mV/sec) with 35.7 Wh/kg and 180.6 kW/kg.