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

Research

Title	Synthesis of Iridium Oxide Nanotubes by Electrodeposition into Polycarbonate Template: Fabrication of Chromium(III) and Arsenic(III) Electrochemical Sensor
Type	JournalPaper
Keywords	Iridium oxide, Nanotubes, Glassy carbon, Electrodeposition, Cr(III), As(III), Sensors
Year	2011
Journal	ELECTROANALYSIS
DOI
Researchers	Erfan Mafakheri ، Abdollah Salimi ، Rahman Hallaj ، Abdolali Ramazani ، Mohamad Almasi Kashi

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 110_10 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.

Rahman Hallaj

Research

Abstract