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- Title
An amperometric sensor for hydrazine based on nano-copper oxide modified electrode.
- Authors
Zhaojing Yin; Liping Liu; Zhousheng Yang
- Abstract
sensitive hydrazine sensor has been fabricated using copper oxide nanoparticles modified glassy carbon electrode (GCE) to form nano-copper oxide/GCE. The nano-copper oxide was electrodeposited on the surface of GCE in CuCl solution at −0.4 V and was characterized by Scanning electron microscopy and X-ray diffraction. The prepared modified electrode showed a good electrocatalytic activity toward oxidation of hydrazine. The electrochemical behavior of hydrazine on nano-copper oxide/GCE was explored. The oxidative current increased linearly with improving concentration of hydrazine on nano-copper oxide/GCE from 0.1 to 600 μM and detection limit for hydrazine was evaluated to be 0.03 μM at a signal-to-noise ratio of 3. The oxidation mechanism of hydrazine on the nano-copper oxide/GCE was also discussed. The fabricated sensor could be used to determine hydrazine in real water.
- Subjects
HYDRAZINES; COPPER oxide; NANOPARTICLES; CARBON electrodes; CONDUCTOMETRIC analysis
- Publication
Journal of Solid State Electrochemistry, 2011, Vol 15, Issue 4, p821
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-010-1161-2