NDLI: A study of the electrochemical behavior of an oxadiazole derivative electrodeposited on multi-wall carbon nanotube-modified electrode and its application as a hydrazine sensor

Content Provider	Springer Nature Link
Author	Nasirizadeh, Navid Zare, Hamid R. Fakhari, Ali R. Ahmar, Hamid Ahmadzadeh, Mohammad R. Naeimi, Amin
Copyright Year	2010
Abstract	In this study, an oxadiazole multi-wall carbon nanotube-modified glassy carbon electrode (OMWCNT−GCE) was used as a highly sensitive electrochemical sensor for hydrazine determination. The surface charge transfer rate constant, k s, and the charge transfer coefficient, α, for electron transfer between GCE and electrodeposited oxadiazole were calculated as 19.4 ± 0.5 s−1 and 0.51, respectively at pH = 7.0. The obtained results indicate that hydrazine peak potential at OMWCNT−GCE shifted for 14, 109, and 136 mV to negative values as compared with oxadiazole-modified GCE, MWCNT−GCE, and activated GCE surface, respectively. The electron transfer coefficient, α, and the heterogeneous rate constant, k′, for the oxidation of hydrazine at OMWCNT−GCE were also determined by cyclic voltammetry measurements. Two linear dynamic ranges of 0.6 to 10.0 μM and 10.0 to 400.0 μM and detection limit of 0.17 μM for hydrazine determination were evaluated using differential pulse voltammetry. In addition, OMWCNT−GCE was shown to be successfully applied to determine hydrazine in various water samples.
Starting Page	2683
Ending Page	2693
Page Count	11
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	15
Issue Number	11-12
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-12-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Oxadiazole Hydrazine Electrocatalytic oxidation Multi-wall carbon nanotubes Physical Chemistry Characterization and Evaluation of Materials Condensed Matter Physics Analytical Chemistry Electrochemistry Energy Storage
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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