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Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon
Macroporous silicon was prepared through an anodization process; the prepared samples showed an average pore size ranging from 4 to 6 microns, and the depth of the pores in the silicon wafer was approximately 80 microns. The prepared samples were tested for hydrogen peroxide (H(2)O(2)) concentration...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876759/ https://www.ncbi.nlm.nih.gov/pubmed/29495561 http://dx.doi.org/10.3390/s18030716 |
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author | Al-Hardan, Naif H. Abdul Hamid, Muhammad Azmi Shamsudin, Roslinda AL-Khalqi, Ensaf Mohammed Kar Keng, Lim Ahmed, Naser M. |
author_facet | Al-Hardan, Naif H. Abdul Hamid, Muhammad Azmi Shamsudin, Roslinda AL-Khalqi, Ensaf Mohammed Kar Keng, Lim Ahmed, Naser M. |
author_sort | Al-Hardan, Naif H. |
collection | PubMed |
description | Macroporous silicon was prepared through an anodization process; the prepared samples showed an average pore size ranging from 4 to 6 microns, and the depth of the pores in the silicon wafer was approximately 80 microns. The prepared samples were tested for hydrogen peroxide (H(2)O(2)) concentrations, which can be used for industrial and environmental sensing applications. The selected H(2)O(2) concentration covered a wide range from 10 to 5000 μM. The tested samples showed a linear response through the tested H(2)O(2) concentrations with a sensitivity of 0.55 μA μM(–1)∙cm(–2) and lower detection limits of 4.35 μM at an operating voltage of 5 V. Furthermore, the electrode exhibited a rapid response with a response time of ca. two seconds. Furthermore, the prepared sensor showed a reasonable stability over a one-month time period. |
format | Online Article Text |
id | pubmed-5876759 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-58767592018-04-09 Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon Al-Hardan, Naif H. Abdul Hamid, Muhammad Azmi Shamsudin, Roslinda AL-Khalqi, Ensaf Mohammed Kar Keng, Lim Ahmed, Naser M. Sensors (Basel) Article Macroporous silicon was prepared through an anodization process; the prepared samples showed an average pore size ranging from 4 to 6 microns, and the depth of the pores in the silicon wafer was approximately 80 microns. The prepared samples were tested for hydrogen peroxide (H(2)O(2)) concentrations, which can be used for industrial and environmental sensing applications. The selected H(2)O(2) concentration covered a wide range from 10 to 5000 μM. The tested samples showed a linear response through the tested H(2)O(2) concentrations with a sensitivity of 0.55 μA μM(–1)∙cm(–2) and lower detection limits of 4.35 μM at an operating voltage of 5 V. Furthermore, the electrode exhibited a rapid response with a response time of ca. two seconds. Furthermore, the prepared sensor showed a reasonable stability over a one-month time period. MDPI 2018-02-28 /pmc/articles/PMC5876759/ /pubmed/29495561 http://dx.doi.org/10.3390/s18030716 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Al-Hardan, Naif H. Abdul Hamid, Muhammad Azmi Shamsudin, Roslinda AL-Khalqi, Ensaf Mohammed Kar Keng, Lim Ahmed, Naser M. Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title | Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title_full | Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title_fullStr | Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title_full_unstemmed | Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title_short | Electrochemical Hydrogen Peroxide Sensor Based on Macroporous Silicon |
title_sort | electrochemical hydrogen peroxide sensor based on macroporous silicon |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876759/ https://www.ncbi.nlm.nih.gov/pubmed/29495561 http://dx.doi.org/10.3390/s18030716 |
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