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

Dongguk University
Bharathiar University
CSIR - Central Scientific Instruments Organisation

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

34 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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10.1016/j.ceramint.2014.12.135

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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,

day = "1",

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

language = "English",

volume = "41",

pages = "5568--5573",

journal = "Ceramics International",

issn = "0272-8842",

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TY - JOUR

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

UR - https://www.scopus.com/pages/publications/84922736574

U2 - 10.1016/j.ceramint.2014.12.135

DO - 10.1016/j.ceramint.2014.12.135

M3 - Article

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

Abstract

Keywords

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