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A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode
A novel nonenzymatic hydrogen peroxide (H(2)O(2)) sensor has been fabricated by dispersing copper nanoparticles onto polypyrrole (PPy) nanowires by cyclic voltammetry (CV) to form PPy-copper nanocomposites on gold electrodes. Scanning electron microscopy (SEM) was used to characterize the morphologi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705493/ https://www.ncbi.nlm.nih.gov/pubmed/27873806 http://dx.doi.org/10.3390/s8085141 |
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author | Zhang, Tingting Yuan, Ruo Chai, Yaqin. Li, Wenjuan Ling, Shujuan |
author_facet | Zhang, Tingting Yuan, Ruo Chai, Yaqin. Li, Wenjuan Ling, Shujuan |
author_sort | Zhang, Tingting |
collection | PubMed |
description | A novel nonenzymatic hydrogen peroxide (H(2)O(2)) sensor has been fabricated by dispersing copper nanoparticles onto polypyrrole (PPy) nanowires by cyclic voltammetry (CV) to form PPy-copper nanocomposites on gold electrodes. Scanning electron microscopy (SEM) was used to characterize the morphologies of the PPy nanowires and the PPy-copper nanocomposite. The reactivity of the PPy-copper nanocomposite towards H(2)O(2) was characterized by cyclic voltammetry and chronoamperometry. Effects of applied potential, the concentrations of detection solution upon the response currents of the sensor were investigated for an optimum analytical performance. It was proved that the PPy-copper nanocomposite showed excellent catalytic activity for the reduction of hydrogen peroxide (H(2)O(2)). The sensor showed a linear response to hydrogen peroxide in the concentration range between 7.0×10(-6) and 4.3×10(-3) mol L(-1) with a high sensitivity, and a detection limit of 2.3×10(-6) mol L(-1). Experiment results also showed that the sensor had good stability. |
format | Online Article Text |
id | pubmed-3705493 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
spelling | pubmed-37054932013-07-09 A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode Zhang, Tingting Yuan, Ruo Chai, Yaqin. Li, Wenjuan Ling, Shujuan Sensors (Basel) Article A novel nonenzymatic hydrogen peroxide (H(2)O(2)) sensor has been fabricated by dispersing copper nanoparticles onto polypyrrole (PPy) nanowires by cyclic voltammetry (CV) to form PPy-copper nanocomposites on gold electrodes. Scanning electron microscopy (SEM) was used to characterize the morphologies of the PPy nanowires and the PPy-copper nanocomposite. The reactivity of the PPy-copper nanocomposite towards H(2)O(2) was characterized by cyclic voltammetry and chronoamperometry. Effects of applied potential, the concentrations of detection solution upon the response currents of the sensor were investigated for an optimum analytical performance. It was proved that the PPy-copper nanocomposite showed excellent catalytic activity for the reduction of hydrogen peroxide (H(2)O(2)). The sensor showed a linear response to hydrogen peroxide in the concentration range between 7.0×10(-6) and 4.3×10(-3) mol L(-1) with a high sensitivity, and a detection limit of 2.3×10(-6) mol L(-1). Experiment results also showed that the sensor had good stability. Molecular Diversity Preservation International (MDPI) 2008-08-28 /pmc/articles/PMC3705493/ /pubmed/27873806 http://dx.doi.org/10.3390/s8085141 Text en © 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). |
spellingShingle | Article Zhang, Tingting Yuan, Ruo Chai, Yaqin. Li, Wenjuan Ling, Shujuan A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title_full | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title_fullStr | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title_full_unstemmed | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title_short | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode |
title_sort | novel nonenzymatic hydrogen peroxide sensor based on a polypyrrole nanowire-copper nanocomposite modified gold electrode |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705493/ https://www.ncbi.nlm.nih.gov/pubmed/27873806 http://dx.doi.org/10.3390/s8085141 |
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