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

N. Sabari Arul; D. Mangalaraj; P. Nandha Kumar; Eunju Kim; Pooja Devi; Jeong In Han

doi:10.1016/j.ceramint.2014.12.135

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

N. Sabari Arul, D. Mangalaraj, P. Nandha Kumar, Eunju Kim, Pooja Devi, Jeong In Han

Department of Chemical and Biochemical Engineering

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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 30.4 ppb. I_p was found to be linearly co-related to nitrobenzene (NB) concentration (R²=0.9916). A substantial enhancement in cathodic peak current (C₁), and sensitivity (∼446 nA/μM) was observed for the α-Fe₂O₃ Micro-/Nanorods-modified GC electrode than those of bare electrodes.

Original language	English
Pages (from-to)	5568-5573
Number of pages	6
Journal	Ceramics International
Volume	41
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2014.12.135
State	Published - 1 May 2015

Keywords

Electrochemical sensing
Micro-/Nanorods
Modified GC electrodes
Nitrobenzene
α-FeO

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

abstract = "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 30.4 ppb. 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 (∼446 nA/μM) was observed for the α-Fe2O3 Micro-/Nanorods-modified GC electrode than those of bare electrodes.",

keywords = "Electrochemical sensing, Micro-/Nanorods, Modified GC electrodes, Nitrobenzene, α-FeO",

author = "{Sabari Arul}, N. and D. Mangalaraj and {Nandha Kumar}, P. and Eunju Kim and Pooja Devi and {In Han}, Jeong",

year = "2015",

month = may,

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doi = "10.1016/j.ceramint.2014.12.135",

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T1 - Synthesis and characterization of α-Fe2O3 Micro-/Nanorods-modified glassy carbon electrode for electrochemical sensing of nitrobenzene

AU - Sabari Arul, N.

AU - Mangalaraj, D.

AU - Nandha Kumar, P.

AU - Kim, Eunju

AU - Devi, Pooja

AU - In Han, Jeong

PY - 2015/5/1

Y1 - 2015/5/1

N2 - 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 30.4 ppb. 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 (∼446 nA/μM) was observed for the α-Fe2O3 Micro-/Nanorods-modified GC electrode than those of bare electrodes.

AB - 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 30.4 ppb. 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 (∼446 nA/μM) was observed for the α-Fe2O3 Micro-/Nanorods-modified GC electrode than those of bare electrodes.

KW - Electrochemical sensing

KW - Micro-/Nanorods

KW - Modified GC electrodes

KW - Nitrobenzene

KW - α-FeO

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DO - 10.1016/j.ceramint.2014.12.135

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AN - SCOPUS:84922736574

SN - 0272-8842

VL - 41

SP - 5568

EP - 5573

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

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

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Keywords

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