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Electrocatalytic oxidation of hydrazine at a glassy carbon electrode modified with nickel ferrite and multi-walled carbon nanotubes |
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| Authors: | Bin Fang Yuehua Feng Min Liu Guangfeng Wang Xiaojun Zhang Meifang Wang |
| Affiliation: | 1. Anhui Key Laboratory of Chemo-Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People??s Republic of China 2. Anhui Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People??s Republic of China 3. Department of Chemistry, Wannan medical college, Wuhu, 241000, People??s Republic of China |
| Abstract: | A hydrothermal technique was used to synthesize nickel ferrite nanoparticles (NF-NPs) deposited on multi-walled carbon nanotubes (MWCNTs). The material was characterized by scanning electron microscopy, energy dispersive spectrometry, and X-ray powder diffraction which showed that the NF-NPs are located on the surface of the carboxylated MWCNTs. The material was used to modify a glassy carbon electrode which then was characterized via cyclic voltammetry, electrochemical impedance spectroscopy, and amperometry. The electrode displays strong electrochemical response to hydrazine. A potential hydrazine sensing scheme is suggested. A fast and sensitive hydrazine electrochemical sensor has been fabricated by dipping nickel ferrite/multi-walled carbon nanotubes onto the pretreated glassy carbon electrode. The sensor had excellent stability, rapid response, ease of construction and utilization for hydrazine determination. |
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