Palladium Coated Steel Electrode - Preparation, Characterization and Their Use of Borohydride Determination


KARABODUK K. , HASDEMİR E. , Aksu M. L.

GAZI UNIVERSITY JOURNAL OF SCIENCE, vol.28, no.3, pp.377-385, 2015 (Journal Indexed in ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 3
  • Publication Date: 2015
  • Title of Journal : GAZI UNIVERSITY JOURNAL OF SCIENCE
  • Page Numbers: pp.377-385

Abstract

The purpose of this study is the fabrication of a cost effective palladium coated steel electrode (Pd-S) for the direct analysis of the sodium borohydride (BH4-). The electrode was prepared by the cyclic voltammetry. The electrode was observed to have a high catalytic effect on the oxidation of BH4-. The Pd-S surface was characterized with profilometry, scanning electron microscope, ferrocene test and electrochemical impedance spectroscopic technique. The effects of borohydride concentration, scan rate and pH upon the electrode reaction were examined. The concentrations of BH4- were found with an error of 0.35-0.53%. The interference of the cations and anions have been investigated.