Synthesis of Iridium Oxide Nanotubes by Electrodeposition into Polycarbonate Template: Fabrication of Chromium(III) and Arsenic(III) Electrochemical Sensor |
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| Authors: | Erfan Mafakheri Abdollah Salimi Rahman Hallaj Abdolali Ramazani Mohamad Almasi Kashi |
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| Affiliation: | 1. Department of Chemistry, University of Kurdistan, P.?O. Box 416, Sanandaj‐Iran tel: +98‐871‐6624001, fax: +98‐871‐6624008;2. Department of Physics, University of Kashan, Kashan 87317‐51167, Iran;3. Research Center for Nanotechnology, University of Kurdistan, P.?O. Box 416, Sanandaj‐Iran |
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| 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 µm 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. |
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| Keywords: | Iridium oxide Nanotubes Glassy carbon Electrodeposition Cr(III) As(III) Sensors |
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