A facile synthesis of novel $\alpha$-ZnMoO$_4$ microspheres as electrode material for supercapacitor applications

[摘要] A mixed metal oxide, $\alpha$-ZnMoO$_4$ is prepared in a simple, lucid and facile synthesis route as an active material for supercapacitor applications. The structural and morphological information is provided by X-ray diffraction, Fouriertransform infrared, Raman and scanning electron microscopy data. The as-prepared $\alpha$-ZnMoO$_4$ microspheres are subjected to cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy studies to examine its electrochemical behaviour in 2 M KOH aqueous electrolyte. Zinc molybdate microspheres have demonstrated very goodelectrochemical performance with 234.75 F g$^{−1}$ at 0.5 Ag−1 with good specific capacitance retention (82%) for sustained1600 charge/discharge cycles.

[学科分类] 材料工程

[关键词] Zinc molybdate;microspheres;cyclic voltammetry;specific capacitance;cyclic stability.