From electrode surface fouling to sensitive electroanalytical determination of phenols

Abdel Nasser Kawde; Mohamed A. Morsy; Nurudeen Odewunmi; Wael Mahfouz

doi:10.1002/elan.201300101

From electrode surface fouling to sensitive electroanalytical determination of phenols

Abdel Nasser Kawde^*
, Mohamed A. Morsy
, Nurudeen Odewunmi
, Wael Mahfouz

^*Corresponding author for this work

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

23 Scopus citations

Abstract

The present investigation of phenol and chlorophenols is conducted on the surface of glassy carbon by cyclic and square wave stripping voltammetry, and by Fourier-transform infrared spectroscopy. The surface fouling is accompanied by the appearance of reversible peaks at lower potential range (+0.1 to+0.4V), that grew up with CV-cycling and attributed to the electro-redox reactions of formed polymer film via electropolymerization. The electroanalytical monitoring of formed polymer oxidation peaks improved both sensitivity and detection limit by 35 and 10 times, respectively. The FT-IR supported semiempirical prediction attributes the electropolymerization to the formation of ortho-para and/or ortho-meta C-C coupled-system.

Original language	English
Pages (from-to)	1547-1555
Number of pages	9
Journal	Electroanalysis
Volume	25
Issue number	6
DOIs	https://doi.org/10.1002/elan.201300101
State	Published - Jun 2013

Keywords

Chlorophenols
Cyclic voltammetry
Electropolymerization
Glassy carbon electrode
Phenol
Square wave adsorptive stripping voltammetry

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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10.1002/elan.201300101

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title = "From electrode surface fouling to sensitive electroanalytical determination of phenols",

abstract = "The present investigation of phenol and chlorophenols is conducted on the surface of glassy carbon by cyclic and square wave stripping voltammetry, and by Fourier-transform infrared spectroscopy. The surface fouling is accompanied by the appearance of reversible peaks at lower potential range (+0.1 to+0.4V), that grew up with CV-cycling and attributed to the electro-redox reactions of formed polymer film via electropolymerization. The electroanalytical monitoring of formed polymer oxidation peaks improved both sensitivity and detection limit by 35 and 10 times, respectively. The FT-IR supported semiempirical prediction attributes the electropolymerization to the formation of ortho-para and/or ortho-meta C-C coupled-system.",

keywords = "Chlorophenols, Cyclic voltammetry, Electropolymerization, Glassy carbon electrode, Phenol, Square wave adsorptive stripping voltammetry",

author = "Kawde, \{Abdel Nasser\} and Morsy, \{Mohamed A.\} and Nurudeen Odewunmi and Wael Mahfouz",

year = "2013",

month = jun,

doi = "10.1002/elan.201300101",

language = "English",

volume = "25",

pages = "1547--1555",

journal = "Electroanalysis",

issn = "1040-0397",

publisher = "Wiley-VCH Verlag",

number = "6",

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TY - JOUR

T1 - From electrode surface fouling to sensitive electroanalytical determination of phenols

AU - Kawde, Abdel Nasser

AU - Morsy, Mohamed A.

AU - Odewunmi, Nurudeen

AU - Mahfouz, Wael

PY - 2013/6

Y1 - 2013/6

N2 - The present investigation of phenol and chlorophenols is conducted on the surface of glassy carbon by cyclic and square wave stripping voltammetry, and by Fourier-transform infrared spectroscopy. The surface fouling is accompanied by the appearance of reversible peaks at lower potential range (+0.1 to+0.4V), that grew up with CV-cycling and attributed to the electro-redox reactions of formed polymer film via electropolymerization. The electroanalytical monitoring of formed polymer oxidation peaks improved both sensitivity and detection limit by 35 and 10 times, respectively. The FT-IR supported semiempirical prediction attributes the electropolymerization to the formation of ortho-para and/or ortho-meta C-C coupled-system.

AB - The present investigation of phenol and chlorophenols is conducted on the surface of glassy carbon by cyclic and square wave stripping voltammetry, and by Fourier-transform infrared spectroscopy. The surface fouling is accompanied by the appearance of reversible peaks at lower potential range (+0.1 to+0.4V), that grew up with CV-cycling and attributed to the electro-redox reactions of formed polymer film via electropolymerization. The electroanalytical monitoring of formed polymer oxidation peaks improved both sensitivity and detection limit by 35 and 10 times, respectively. The FT-IR supported semiempirical prediction attributes the electropolymerization to the formation of ortho-para and/or ortho-meta C-C coupled-system.

KW - Chlorophenols

KW - Cyclic voltammetry

KW - Electropolymerization

KW - Glassy carbon electrode

KW - Phenol

KW - Square wave adsorptive stripping voltammetry

UR - https://www.scopus.com/pages/publications/84878959917

U2 - 10.1002/elan.201300101

DO - 10.1002/elan.201300101

M3 - Article

AN - SCOPUS:84878959917

SN - 1040-0397

VL - 25

SP - 1547

EP - 1555

JO - Electroanalysis

JF - Electroanalysis

IS - 6

ER -

From electrode surface fouling to sensitive electroanalytical determination of phenols

Abstract

Keywords

ASJC Scopus subject areas

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