The ultrasonic electropolymerization of an 5-[o-(4-bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) film electrode and its electrocatalytic properties to dopamine oxidation in aqueous solution

Fang Ye, Junmin Nan, Lishi Wang, Yan Song, Kwang Bum Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

5-[o-(4-Bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) was electropolymerized on a glassy carbon electrode (GCE), and the electrocatalytic properties of the prepared film electrode response to dopamine (DA) oxidation were investigated. A stable o-BrPETPP film was formed on the GCE under ultrasonic irradiation through a potentiodynamic process in 0.1 M H2SO4 between -1.1 V and 2.2 V versus a saturated calomel electrode (SCE) at a scan rate of 0.1 V s-1. The film electrode showed high selectivity for DA in the presence of ascorbic acid (AA) and uric acid (UA), and a 6-fold greater sensitivity to DA than that of the bare GCE. In the 0.05 mol L-1 phosphate buffer (pH 6.0), there was a linear relationship between the oxidation current and the concentration of DA solution in the range of 5 × 10-7 mol L-1 to 3 × 10-5 mol L-1. The electrode had a detection limit of 6.0 × 10-8 mol L-1(S/N = 3) when the differential pulse voltammetric (DPV) method was used. In addition, the charge transfer rate constant k = 0.0703 cm s-1, the transfer coefficient α = 0.709, the electron number involved in the rate determining step nα = 0.952, and the diffusion coefficient Do = 3.54 10-5 cm2 s-1 were determined. The o-BrPETPP film electrode provides high stability, sensitivity, and selectivity for DA oxidation.

Original languageEnglish
Pages (from-to)4156-4160
Number of pages5
JournalElectrochimica Acta
Volume53
Issue number12
DOIs
Publication statusPublished - 2008 May 1

Fingerprint

Bromine
Electropolymerization
Dopamine
Ultrasonics
Oxidation
Electrodes
Glassy carbon
Ascorbic acid
Uric Acid
Ascorbic Acid
Charge transfer
Rate constants
Buffers
Phosphates
Irradiation
Acids
Electrons

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

@article{803566307ab648dab28d8c2c65a3a27b,
title = "The ultrasonic electropolymerization of an 5-[o-(4-bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) film electrode and its electrocatalytic properties to dopamine oxidation in aqueous solution",
abstract = "5-[o-(4-Bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) was electropolymerized on a glassy carbon electrode (GCE), and the electrocatalytic properties of the prepared film electrode response to dopamine (DA) oxidation were investigated. A stable o-BrPETPP film was formed on the GCE under ultrasonic irradiation through a potentiodynamic process in 0.1 M H2SO4 between -1.1 V and 2.2 V versus a saturated calomel electrode (SCE) at a scan rate of 0.1 V s-1. The film electrode showed high selectivity for DA in the presence of ascorbic acid (AA) and uric acid (UA), and a 6-fold greater sensitivity to DA than that of the bare GCE. In the 0.05 mol L-1 phosphate buffer (pH 6.0), there was a linear relationship between the oxidation current and the concentration of DA solution in the range of 5 × 10-7 mol L-1 to 3 × 10-5 mol L-1. The electrode had a detection limit of 6.0 × 10-8 mol L-1(S/N = 3) when the differential pulse voltammetric (DPV) method was used. In addition, the charge transfer rate constant k = 0.0703 cm s-1, the transfer coefficient α = 0.709, the electron number involved in the rate determining step nα = 0.952, and the diffusion coefficient Do = 3.54 10-5 cm2 s-1 were determined. The o-BrPETPP film electrode provides high stability, sensitivity, and selectivity for DA oxidation.",
author = "Fang Ye and Junmin Nan and Lishi Wang and Yan Song and Kim, {Kwang Bum}",
year = "2008",
month = "5",
day = "1",
doi = "10.1016/j.electacta.2007.12.063",
language = "English",
volume = "53",
pages = "4156--4160",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",
number = "12",

}

TY - JOUR

T1 - The ultrasonic electropolymerization of an 5-[o-(4-bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) film electrode and its electrocatalytic properties to dopamine oxidation in aqueous solution

AU - Ye, Fang

AU - Nan, Junmin

AU - Wang, Lishi

AU - Song, Yan

AU - Kim, Kwang Bum

PY - 2008/5/1

Y1 - 2008/5/1

N2 - 5-[o-(4-Bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) was electropolymerized on a glassy carbon electrode (GCE), and the electrocatalytic properties of the prepared film electrode response to dopamine (DA) oxidation were investigated. A stable o-BrPETPP film was formed on the GCE under ultrasonic irradiation through a potentiodynamic process in 0.1 M H2SO4 between -1.1 V and 2.2 V versus a saturated calomel electrode (SCE) at a scan rate of 0.1 V s-1. The film electrode showed high selectivity for DA in the presence of ascorbic acid (AA) and uric acid (UA), and a 6-fold greater sensitivity to DA than that of the bare GCE. In the 0.05 mol L-1 phosphate buffer (pH 6.0), there was a linear relationship between the oxidation current and the concentration of DA solution in the range of 5 × 10-7 mol L-1 to 3 × 10-5 mol L-1. The electrode had a detection limit of 6.0 × 10-8 mol L-1(S/N = 3) when the differential pulse voltammetric (DPV) method was used. In addition, the charge transfer rate constant k = 0.0703 cm s-1, the transfer coefficient α = 0.709, the electron number involved in the rate determining step nα = 0.952, and the diffusion coefficient Do = 3.54 10-5 cm2 s-1 were determined. The o-BrPETPP film electrode provides high stability, sensitivity, and selectivity for DA oxidation.

AB - 5-[o-(4-Bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) was electropolymerized on a glassy carbon electrode (GCE), and the electrocatalytic properties of the prepared film electrode response to dopamine (DA) oxidation were investigated. A stable o-BrPETPP film was formed on the GCE under ultrasonic irradiation through a potentiodynamic process in 0.1 M H2SO4 between -1.1 V and 2.2 V versus a saturated calomel electrode (SCE) at a scan rate of 0.1 V s-1. The film electrode showed high selectivity for DA in the presence of ascorbic acid (AA) and uric acid (UA), and a 6-fold greater sensitivity to DA than that of the bare GCE. In the 0.05 mol L-1 phosphate buffer (pH 6.0), there was a linear relationship between the oxidation current and the concentration of DA solution in the range of 5 × 10-7 mol L-1 to 3 × 10-5 mol L-1. The electrode had a detection limit of 6.0 × 10-8 mol L-1(S/N = 3) when the differential pulse voltammetric (DPV) method was used. In addition, the charge transfer rate constant k = 0.0703 cm s-1, the transfer coefficient α = 0.709, the electron number involved in the rate determining step nα = 0.952, and the diffusion coefficient Do = 3.54 10-5 cm2 s-1 were determined. The o-BrPETPP film electrode provides high stability, sensitivity, and selectivity for DA oxidation.

UR - http://www.scopus.com/inward/record.url?scp=40149103090&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40149103090&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2007.12.063

DO - 10.1016/j.electacta.2007.12.063

M3 - Article

AN - SCOPUS:40149103090

VL - 53

SP - 4156

EP - 4160

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

IS - 12

ER -