Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix

We report on an optical nitrogen oxide (NO) gas sensor device using cobalt tetraphenylporphyrin (CoTPP) dispersed in three kinds of hydrophobic polymer film matrix (polystyrene (PSt), ethylcellulose (EC), and polycyclohexyl methacrylate (PCHMA)) to improve humidity resistance. Our approach is very e...

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Main Authors: Shunsuke Shiba, Kohei Yamada, Masanobu Matsuguchi
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/5/1295
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author Shunsuke Shiba
Kohei Yamada
Masanobu Matsuguchi
author_facet Shunsuke Shiba
Kohei Yamada
Masanobu Matsuguchi
author_sort Shunsuke Shiba
collection DOAJ
description We report on an optical nitrogen oxide (NO) gas sensor device using cobalt tetraphenylporphyrin (CoTPP) dispersed in three kinds of hydrophobic polymer film matrix (polystyrene (PSt), ethylcellulose (EC), and polycyclohexyl methacrylate (PCHMA)) to improve humidity resistance. Our approach is very effective because it allows us to achieve not only high humidity resistance, but also a more than sixfold increase in sensitivity compared with CoTPP film due to the high dispersion of CoTPP in the polymer film. The limit of detection was calculated as 33 ppb for the CoTPP-dispersed EC film, which is lower than that of CoTPP film (92 ppb).
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spelling doaj.art-f4fbecea1e4d45ac8aafb8991ab00ce72022-12-22T02:07:20ZengMDPI AGSensors1424-82202020-02-01205129510.3390/s20051295s20051295Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer MatrixShunsuke Shiba0Kohei Yamada1Masanobu Matsuguchi2Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3-Bunkyo-cho, Matsuyama, Ehime 790-0826, JapanDepartment of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3-Bunkyo-cho, Matsuyama, Ehime 790-0826, JapanDepartment of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3-Bunkyo-cho, Matsuyama, Ehime 790-0826, JapanWe report on an optical nitrogen oxide (NO) gas sensor device using cobalt tetraphenylporphyrin (CoTPP) dispersed in three kinds of hydrophobic polymer film matrix (polystyrene (PSt), ethylcellulose (EC), and polycyclohexyl methacrylate (PCHMA)) to improve humidity resistance. Our approach is very effective because it allows us to achieve not only high humidity resistance, but also a more than sixfold increase in sensitivity compared with CoTPP film due to the high dispersion of CoTPP in the polymer film. The limit of detection was calculated as 33 ppb for the CoTPP-dispersed EC film, which is lower than that of CoTPP film (92 ppb).https://www.mdpi.com/1424-8220/20/5/1295metalloporphyrinhydrophobic polymer filmoptical gas sensornitrogen monoxidecobalt tetraphenylporphyrin
spellingShingle Shunsuke Shiba
Kohei Yamada
Masanobu Matsuguchi
Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
Sensors
metalloporphyrin
hydrophobic polymer film
optical gas sensor
nitrogen monoxide
cobalt tetraphenylporphyrin
title Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
title_full Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
title_fullStr Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
title_full_unstemmed Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
title_short Humidity-Resistive Optical NO Gas Sensor Devices Based on Cobalt Tetraphenylporphyrin Dispersed in Hydrophobic Polymer Matrix
title_sort humidity resistive optical no gas sensor devices based on cobalt tetraphenylporphyrin dispersed in hydrophobic polymer matrix
topic metalloporphyrin
hydrophobic polymer film
optical gas sensor
nitrogen monoxide
cobalt tetraphenylporphyrin
url https://www.mdpi.com/1424-8220/20/5/1295
work_keys_str_mv AT shunsukeshiba humidityresistiveopticalnogassensordevicesbasedoncobalttetraphenylporphyrindispersedinhydrophobicpolymermatrix
AT koheiyamada humidityresistiveopticalnogassensordevicesbasedoncobalttetraphenylporphyrindispersedinhydrophobicpolymermatrix
AT masanobumatsuguchi humidityresistiveopticalnogassensordevicesbasedoncobalttetraphenylporphyrindispersedinhydrophobicpolymermatrix