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

Bulletin of the Korean chemical society

Haesang Jeong¹  Kyung Sik Seo¹  Eun Seon Jeong¹  Jung Min You¹  Songmi Kim¹  Seungwon Jeon¹  Seul Ki Kim¹  Heejin Seol¹ 

关键词: Porphyrin nanowire;    Single-walled carbon nanotubes;    Hydrogen peroxide;    Electrochemical sensor;    Amperometry;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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.

【 授权许可】

Unknown