Synthesis and characterization of α-Fe2O3 Micro-/Nanorods-modified glassy carbon electrode for electrochemical sensing of nitrobenzene

α-Fe2O3 Micro-/Nanorods were synthesized via a co-precipitation method at room temperature. The obtained products were characterized by XRD, SEM, and BET techniques. XRD analysis showed the formation of α-Fe2O3 Micro-/Nanorods. The nitrobenzene sensing of α-Fe2O3 Micro-/Nanorods-modified glassy carb...

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Bibliographic Details
Published in:Ceramics international 2015-05, Vol.41 (4), p.5568-5573
Main Authors: Sabari Arul, N., Mangalaraj, D., Nandha Kumar, P., Kim, Eunju, Devi, Pooja, In Han, Jeong
Format: Article
Language:English
Subjects:
Electrochemical sensing
Micro-/Nanorods
Modified GC electrodes
Nitrobenzene
α-Fe2O3
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Summary:α-Fe2O3 Micro-/Nanorods were synthesized via a co-precipitation method at room temperature. The obtained products were characterized by XRD, SEM, and BET techniques. XRD analysis showed the formation of α-Fe2O3 Micro-/Nanorods. The nitrobenzene sensing of α-Fe2O3 Micro-/Nanorods-modified glassy carbon (GC) electrode was characterized using a cyclic voltammetric (CV) electrochemical technique. The CV curves exhibited redox peaks with a detection limit of 30.4ppb. Ip was found to be linearly co-related to nitrobenzene (NB) concentration (R2=0.9916). A substantial enhancement in cathodic peak current (C1), and sensitivity (~446nA/µM) was observed for the α-Fe2O3 Micro-/Nanorods-modified GC electrode than those of bare electrodes.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2014.12.135