Determination of Hydrogen Peroxide on Modified Glassy Carbon Electrode by Polytetrakis(2-aminophenyl)porphyrin Nanowire

Nanowires of polytetrakis(o-aminophenyl)porphyrin (PTAPPNW) were fabricated by electrochemical polymerization with the cyclic voltammetric method in anodic aluminum oxide (AAO) membranes. The glassy carbon electrode (GCE) modified by PTAPPNW, single-walled carbon nanotubes (SWNT) and Nafion as a bin...

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Bibliographic Details
Published inBulletin of the Korean Chemical Society Vol. 30; no. 12; pp. 2979 - 2983
Main Authors Jeong, Hae-Sang, Kim, Song-Mi, Seol, Hee-Jin, You, Jung-Min, Jeong, Eun-Seon, Kim, Seul-Ki, Seol, Kyung-Sik, Jeon, Seung-Won
Format Journal Article
LanguageKorean
Published 2009
Subjects
Hydrogen peroxide
Porphyrin nanowire
Amperometry
Electrochemical sensor
Single-walled carbon nanotubes
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Summary:Nanowires of polytetrakis(o-aminophenyl)porphyrin (PTAPPNW) were fabricated by electrochemical polymerization with the cyclic voltammetric method in anodic aluminum oxide (AAO) membranes. The glassy carbon electrode (GCE) modified by PTAPPNW, single-walled carbon nanotubes (SWNT) and Nafion as a binder was investigated with voltammetric methods in a phosphate buffer saline (PBS) solution at pH 7.4. The PTAPPNW + SWNT + Nafion/GCE exhibited strongly enhanced voltammetric and amperometric sensitivity towards hydrogen peroxide ($H_2O_2$), which shortened the response time and enhanced the sensitivity for $H_2O_2$ determination at an applied potential of 0.0 V by amperometric method. The PTAPPNW + SWNT + Nafion/GCE can be used to monitor $H_2O_2$ at very low concentrations in biological pH as an efficient electrochemical $H_2O_2$ sensor.
Bibliography:KISTI1.1003/JNL.JAKO200902727470426
ISSN:0253-2964
1229-5949