Nanostructured MoS2/BiVO4Composites for Energy Storage Applications.
We report the optimized synthesis and electrochemical characterization of a composite of few-layered nanostructured MoS2along with an electroactive metal oxide BiVO4. In comparison to pristine BiVO4, and a composite of graphene/BiVO4, the MoS2/BiVO4nanocomposite provides impressive values of charge storage with longer discharge times and improved cycling stability. Specific capacitance values of 610 Fg-1(170 mAhg-1) at 1 Ag-1and 166 Fg-1(46 mAhg-1) at 10 Ag-1were obtained for just 2.5 wt% MoS2loaded BiVO4. The results suggest that the explicitly synthesized small lateral-dimensioned MoS2particles provide a notable capacitive component that helps augment the specific capacitance. We discuss the optimized synthesis of monoclinic BiVO4, and few-layered nanostructured MoS2. We report the discharge capacities and cycling performance of the MoS2/BiVO4nanocomposite using an aqueous electrolyte. The data obtained shows the MoS2/BiVO4nanocomposite to be a promising candidate for supercapacitor energy storage applications.
Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai-400005, India.
Yukti
Y
Arora
Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai-400005, India.
Amit P
AP
Shah
Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind, Pune-411007, India.
Shateesh
S
Battu
Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai-400005, India.
Carina B
CB
Maliakkal
Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind, Pune-411007, India.
Santosh
S
Haram
Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai-400005, India.
Arnab
A
Bhattacharya
Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai-400005, India.
Deepa
D
Khushalani