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Low-Temperature Highly Robust Hydrogen Sensor Using Pristine ZnO Nanorods with Enhanced Response and Selectivity
[Image: see text] We report the hydrogen-sensing response on low-cost-solution-derived ZnO nanorods (NRs) on a glass substrate, integrated with aluminum as interdigitated electrodes (IDEs). The hydrothermally grown ZnO NRs on ZnO seed-layer-glass substrates are vertically aligned and highly textured...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9386818/ https://www.ncbi.nlm.nih.gov/pubmed/35990479 http://dx.doi.org/10.1021/acsomega.2c02510 |
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author | Prakash, Chandra Chaurasiya, Rajneesh Kale, Abhijeet J. Dixit, Ambesh |
author_facet | Prakash, Chandra Chaurasiya, Rajneesh Kale, Abhijeet J. Dixit, Ambesh |
author_sort | Prakash, Chandra |
collection | PubMed |
description | [Image: see text] We report the hydrogen-sensing response on low-cost-solution-derived ZnO nanorods (NRs) on a glass substrate, integrated with aluminum as interdigitated electrodes (IDEs). The hydrothermally grown ZnO NRs on ZnO seed-layer-glass substrates are vertically aligned and highly textured along the c-axis (002 plane) with texture coefficient ∼2.3. An optimal hydrogen-sensing response of about 21.46% is observed for 150 ppm at 150 °C, which is higher than the responses at 100 and 50 °C, which are ∼12.98 and ∼10.36%, respectively. This can be attributed to the large surface area of ∼14.51 m(2)/g and pore volume of ∼0.013 cm(3)/g, associated with NRs and related defects, especially oxygen vacancies in pristine ZnO nanorods. The selective nature is investigated with different oxidizing and reducing gases like NO(2), CO, H(2)S, and NH(3), showing relatively much lower ∼4.28, 3.42, 6.43, and 3.51% responses, respectively, at 50 °C for 50 ppm gas concentration. The impedance measurements also substantiate the same as the observed surface resistance is initially more than bulk, which reduces after introducing the hydrogen gas during sensing measurements. The humidity does not show any significant change in the hydrogen response, which is ∼20.5 ± 1.5% for a large humidity range (from 10 to 65%). More interestingly, the devices are robust against sensing response, showing no significant change after 10 months or even more. |
format | Online Article Text |
id | pubmed-9386818 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-93868182022-08-19 Low-Temperature Highly Robust Hydrogen Sensor Using Pristine ZnO Nanorods with Enhanced Response and Selectivity Prakash, Chandra Chaurasiya, Rajneesh Kale, Abhijeet J. Dixit, Ambesh ACS Omega [Image: see text] We report the hydrogen-sensing response on low-cost-solution-derived ZnO nanorods (NRs) on a glass substrate, integrated with aluminum as interdigitated electrodes (IDEs). The hydrothermally grown ZnO NRs on ZnO seed-layer-glass substrates are vertically aligned and highly textured along the c-axis (002 plane) with texture coefficient ∼2.3. An optimal hydrogen-sensing response of about 21.46% is observed for 150 ppm at 150 °C, which is higher than the responses at 100 and 50 °C, which are ∼12.98 and ∼10.36%, respectively. This can be attributed to the large surface area of ∼14.51 m(2)/g and pore volume of ∼0.013 cm(3)/g, associated with NRs and related defects, especially oxygen vacancies in pristine ZnO nanorods. The selective nature is investigated with different oxidizing and reducing gases like NO(2), CO, H(2)S, and NH(3), showing relatively much lower ∼4.28, 3.42, 6.43, and 3.51% responses, respectively, at 50 °C for 50 ppm gas concentration. The impedance measurements also substantiate the same as the observed surface resistance is initially more than bulk, which reduces after introducing the hydrogen gas during sensing measurements. The humidity does not show any significant change in the hydrogen response, which is ∼20.5 ± 1.5% for a large humidity range (from 10 to 65%). More interestingly, the devices are robust against sensing response, showing no significant change after 10 months or even more. American Chemical Society 2022-08-08 /pmc/articles/PMC9386818/ /pubmed/35990479 http://dx.doi.org/10.1021/acsomega.2c02510 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Prakash, Chandra Chaurasiya, Rajneesh Kale, Abhijeet J. Dixit, Ambesh Low-Temperature Highly Robust Hydrogen Sensor Using Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title | Low-Temperature
Highly Robust Hydrogen Sensor Using
Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title_full | Low-Temperature
Highly Robust Hydrogen Sensor Using
Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title_fullStr | Low-Temperature
Highly Robust Hydrogen Sensor Using
Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title_full_unstemmed | Low-Temperature
Highly Robust Hydrogen Sensor Using
Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title_short | Low-Temperature
Highly Robust Hydrogen Sensor Using
Pristine ZnO Nanorods with Enhanced Response and Selectivity |
title_sort | low-temperature
highly robust hydrogen sensor using
pristine zno nanorods with enhanced response and selectivity |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9386818/ https://www.ncbi.nlm.nih.gov/pubmed/35990479 http://dx.doi.org/10.1021/acsomega.2c02510 |
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