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

• Published in: Bulletin 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
• Language: English
• Published: 대한화학회 20.12.2009
• Subjects: 화학
• ISSN: 0253-2964; 1229-5949
• DOI: 10.5012/bkcs.2009.30.12.2979

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 (H2O2), which shortened the response time and enhanced the sensitivity for H2O2 determination at an applied potential of 0.0 V by amperometric method. The PTAPPNW + SWNT + Nafion/GCE can be used to monitor H2O2 at very low concentrations in biological pH as an efficient electrochemical H2O2 sensor. KCI Citation Count: 6