Journal
CERAMICS INTERNATIONAL
Volume 41, Issue 4, Pages 5568-5573Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.12.135
Keywords
alpha-Fe2O3; Micro-/Nanorods; Modified GC electrodes; Electrochemical sensing; Nitrobenzene
Categories
Funding
- Technology Innovation Program (Design and Development of fiber based flexible display) - Ministry of Trade, Industry and Energy (ME, Korea) [10041957]
- Civil-Military Technology Cooperation Center [13-DU-EE-13]
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alpha-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 alpha-Fe2O3 Micro-/Nanorods. The nitrobenzene sensing of alpha-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 30.4 ppb. I-p was found to be linearly co-related to nitrobenzene (NB) concentration (R-2=0.9916). A substantial enhancement in cathodic peak current (C-1), and sensitivity (similar to 446 nA/mu M) was observed for the alpha-Fe2O3 Micro-/Nanorods-modified GC electrode than those of bare electrodes. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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