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Analytical and Bioanalytical Electrochemistry، جلد ۱۴، شماره ۱، صفحات ۱-۱۷
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عنوان انگلیسی Crystal Structure, Morphology, Optical and Super-Capacitor Properties of Srx: α-Sb2O4 Nanostructures
چکیده انگلیسی مقاله Mixed orthorhombic Srx doped α-Sb2O4 (x=2,4,8 and 10 wt. %) nanostructures (NS) were successfully synthesized by simple chemical precipitation method. Crystal structure, morphologies and microstructures of the as-synthesized Srx: α-Sb2O4 NS were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. XRD displayed that the NS were extensively crystalized and crystallite size increases with increase in the concentration of Sr2+ ions. SEM revealed spherical like morphologies and grain size varies between ~ 88 nm to 110 nm. Red shift in the optical absorptivity and increase in the optical band gap (Eg) displayed in UV-visible spectra as the Sr concentration increases in
α-Sb2O4 NS. In Fourier transform infrared spectra (FT-IR), intensity of the characteristic peak Sb-OH gradually increases as Sr2+ dopant concentration increases in NS. Electrochemical performances of Srx: α-Sb2O4 (x =10 wt. %) NS exhibited specific capacitance of 890 F/g at a current density of 1 A/g in 6 M KOH solution. Srx: α-Sb2O4 NS showed cyclic retention of 88.95 %, long term cyclic stability up to 1000 cycles and excellent repeatability and reproducibility. Srx:α-Sb2O4 NS act as a promising electrode material for super capacitor and can be used in high energy storage device applications.  
کلیدواژه‌های انگلیسی مقاله Cyclic voltammetry,Galvanostatic Charge-Discharge,Sr α-Sb2O4,Nanostructures,UV-visible,XPS
نویسندگان مقاله Vinayak Adimule |
Department of Chemistry, Angadi Institute of Technology and Management, Savagaon Road, Belagavi-590008, Karnataka, India

Basappa C Yallur |
Department of Chemistry, M S Ramaiah Institute of Technology, Bangalore-560054, Karnataka, India

Adarsha HJ Gowda |
Centre for Research in Medical Devices, National University of Ireland, Gaillimh, Galway- H91TK33, Ireland

نشانی اینترنتی https://www.abechem.com/article_249317_152fbe3dc0d7a84dbf936d7f6db80045.pdf
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