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Vol. 29 No. 1 (2017): Vol 29 Issue 1

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Cyclic Voltammetric Analysis of Ruthenium Oxide Thin Film Electrodes: Effect of Aqueous Electrolytes

https://doi.org/10.14233/ajchem.2017.20378
P.S. Joshi1
1Department of Physics, Walchand Institute of Technology, Solapur-413 006, India 2D.B.F. Dayanand College of Arts and Science, Solapur-413 002, India *Corresponding author: E-mail: sutravedattatray@gmail.com
S.M. Jogade2
1Department of Physics, Walchand Institute of Technology, Solapur-413 006, India 2D.B.F. Dayanand College of Arts and Science, Solapur-413 002, India *Corresponding author: E-mail: sutravedattatray@gmail.com
S.D. Gothe2
1Department of Physics, Walchand Institute of Technology, Solapur-413 006, India 2D.B.F. Dayanand College of Arts and Science, Solapur-413 002, India *Corresponding author: E-mail: sutravedattatray@gmail.com
D.S. Sutrave2
1Department of Physics, Walchand Institute of Technology, Solapur-413 006, India 2D.B.F. Dayanand College of Arts and Science, Solapur-413 002, India *Corresponding author: E-mail: sutravedattatray@gmail.com

Asian Journal of Chemistry, Vol. 29 No. 1 (2017): Vol 29 Issue 1

Abstract

The electrolyte is of utmost importance for the determination of electrochemical behaviour of electrodes as the specific capacitance, operating voltage, power density are greatly dependent on the electrolyte. This work focuses on the study of different aqueous electrolytes (KOH, NaOH, KCl, CH3COONa, NH4Cl) by means of pH, ionic size, molar conductivity, mobility of the ions for the cyclic voltammetry analysis of sol-gel prepared spin coated ruthenium oxide thin film electrodes. The structural study showed the tetragonal formation of ruthenium oxide thin films. Mud-cracked and porous morphologies were clearly found. The electrolytes were of same molarity. Cyclic voltammetric analysis showed the good capacitive behaviour for all the electrolytes but it showed the maximum specific capacitance of 581 F/g for KOH electrolyte. The calculated specific power and specific energy were 36 KW Kg-1 and 8.25 Wh Kg-1, respectively with 71 % efficiency. It may be assumed that the most suitable pore structure of ruthenium oxide was KOH electrolyte.

Keywords

Aqueous electrolyte RuO2 Cyclic voltammetry.
Joshi1, P., Jogade2, S., Gothe2, S., & Sutrave2, D. (2016). Cyclic Voltammetric Analysis of Ruthenium Oxide Thin Film Electrodes: Effect of Aqueous Electrolytes. Asian Journal of Chemistry, 29(1), 203–208. https://doi.org/10.14233/ajchem.2017.20378
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