{'fraction_non_alphanumeric': 0.02127659574468085, 'fraction_numerical': 0.019858156028368795, 'mean_word_length': 5.327354260089686, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Electrochemical and electronic properties of flower-like MoS2 nanostructures in aqueous and ionic liquid media

In the present work, we report a facile strategy to synthesize uniform 3D flower-like MoS2 nanostructures prepared by a one-pot hydrothermal method and investigate their supercapacitive behavior. A field emission scanning electron microscopy, atomic force microscopy and X-ray diffraction study reveals the formation of randomly stacked layers of MoS2. The electrochemical properties of MoS2 nanostructures were investigated using cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) and electrochemical impedance spectra (EIS) techniques in aqueous and ionic liquid media. The CV measurement shows that the as-synthesized MoS2 electrode delivered a maximum capacitance of 218 F g−1 at a scan rate of 5 mV s−1 in aqueous medium. The GCD measurement shows a maximum specific capacitance of about 217.6 F g−1 at a discharge current density of 0.1 A g−1 in aqueous electrolyte. EIS with an appropriate electrical equivalent circuit was employed to understand the charge storage mechanism in the MoS2 electrode. Cyclic stability tests in aqueous medium reveal a capacitance retention of about 76% after 1000 cycles. This study reveals that a nearly pure capacitive behavior is observed for aqueous electrolyte and a diffusive behavior is observed for the MoS2 electrode in ionic liquid medium.