Author(s)

Venkata Subba Reddy Channu, Rudolf Holze, Scott Ambrose Wicker Sr., Edwin H. Walker Jr., Quinton L. Williams, Rajamohan R. Kalluru

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The electrode materials SnO₂, RuO₂ and (Sn-Ru)O₂ were synthesized through precipitation method from SnCl₂·2H₂O and RuCl₂·2H₂O solutions. The obtained nano-sized pristine products were characterized using X-ray diffractometry, Scanning Electron Microscopy (SEM), differential scanning calorimetry (DSC)-thermogravimetric analysis (TGA) and cyclic voltammetry (CV). The Debye–Scherrer formula was used to estimate the average size of the nanoparticles SnO₂ (36 nm), RuO₂(24 nm), and (Sn-Ru)O₂ (19 nm). Electrochemical studies were carried out to examine the capacitance of SnO₂, RuO₂, (Sn-Ru)O₂ electrodes in 0.5 M H₂SO₄ at various scan rates. The estimated electrode capacitance was de-termined to decrease with an increase of scan rate.

Precipitation Synthesis, (Ru-Sn)O₂ Nanocomposities, Supercapacitor

V. Channu, R. Holze, S. Sr., E. Jr., Q. Williams and R. Kalluru, "Synthesis and Characterization of (Ru-Sn)O₂ Nanoparticles for Supercapacitors," Materials Sciences and Applications, Vol. 2 No. 9, 2011, pp. 1175-1179. doi: 10.4236/msa.2011.29158.