A comparative study on the electrochemical capacitor performance of 1T/2H hybridized phase and 2H pure phase of MoS <sub>2</sub> nanoflowers
Ramesh Aravind Murugesan, Krishna Chandar Nagamuthu Raja
Abstract
Abstract The 1T/2H hybridized and 2H pure phases of MoS 2 nanoflowers were synthesized in a one-step hydrothermal process with the molybdenum source as sodium molybdate dihydrate and the sulfur source as thiourea. The as-prepared 1T/2H hybridized and 2H pure phases of MoS 2 were investigated using a thermogravimetry\differential thermal analysis, powder x-ray diffraction, field emission scanning electron microscopy, and energy-dispersive x-ray spectroscopy. The obtained 1T/2H hybridized phases of MoS 2 were confirmed by the Raman spectroscopy. The electrochemical characteristics of MoS 2 electrodes were examined using cycle voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy. The electrodes are based on the 1T/2H hybridized phases MoS 2 with specific capacitance ( C p ) of 555.4 F g −1 at current densities ( C d ) of 0.5 A g −1 , capacity retention ratio of 85% after 10 000 cycles were observed that could be a strong potential electrode material for supercapacitors application.