Voltammetric oxidation of potassium thiocyanate using ErBa2Cu3O7 modified glassy carbon electrode.

Citation

Mohammed Zidan, and Tan, Wee Tee and Alaghbari, Elyas Sadeq and Ahmad, Mansor and Shameli, Kamyar (2013) Voltammetric oxidation of potassium thiocyanate using ErBa2Cu3O7 modified glassy carbon electrode. International Journal of Electrochemical Science, 8 (4). pp. 4818-4826. ISSN 1452-3981

Abstract

The electrochemical analysis of ErBa2Cu3O7 (ErBCO) superconductor materials, adhered at a glassy carbon electrode surface placed in an aqueous media has been investigated by cyclic voltammetry technique. Voltammetric determination of the oxidation of Thiocyanate in 0.1 M NH4Cl electrolyte solution by solid phase voltammetry has shown the effect of copper–thiocyanate complexes. Observation revealed a high peak of ErBCO appears at 220 mV vs Ag/AgCl when there is an absence of thiocyanate, while in the presence of thiocyanate, peak current increases by 3.1. The voltammetric response of the ErBCO was found to depend greatly on the scan rate and pH. From CC studies, the amount of charge, Q that was present on the electrode surface is 5.513 µC/cm. The diffusion coefficient,D, value for the copper–thiocyanate complexes was determined to be 7.48x10-05 cm2/s.

Download File

Preview

PDF (Abstract)
Voltammetric oxidation of potassium thiocyanate using ErBa2Cu3O7 modified glassy carbon electrode.pdf
Download (185kB) | Preview

Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
Publisher:	Electrochemical Science Group
Keywords:	ErBa2Cu3O7−δ; Modified GC electrode; Potassium thiocyanate; Cyclic voltammetry
Depositing User:	Umikalthom Abdullah
Date Deposited:	29 May 2014 06:05
Last Modified:	09 Oct 2015 00:53
URI:	http://psasir.upm.edu.my/id/eprint/29978
Statistic Details:	View Download Statistic

Actions (login required)

View Item