Synthesis of Iridium Oxide Nanotubes by Electrodeposition into Polycarbonate Template: Fabrication of Chromium(III) and Arsenic(III) Electrochemical Sensor

Authorsعرفان مفاخری باشماق -عبداله سلیمی-رحمان حلاج-عبد العلی رمضانی-محمد الماسی کاشی
Journalelectroanalyses
Paper TypeFull Paper
Published At2011-7-01
Journal GradeISI
Journal TypeTypographic
Journal CountryAruba
Journal IndexISI ,SCOPUS

Abstract

For the first time iridium oxide (IrO2) nanotubes are synthesized by electrodeposition in a polycarbonate (PC) template. Potential cycling (90 cycles) between 0.0 and 0.9 V is used for the preparation of IrOx nanotubes onto the PC template with a pore diameter of 100 nm. Field-emission scanning electron microscopy (FESEM) images show, that IrO2 nanotubes with uniform diameters of 11010 nm and an estimated length of 1–3 mm are formed. The electrochemical properties and the electrocatalytic activity of a glassy carbon-IrOx nanotube modified electrode toward Cr3+ and As3+ oxidation are investigated. Finally, the modified electrode is used for micromolar detection of the proposed analytes using differential pulse voltammetry.