Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Prakash, Chandra, Chaurasiya, Rajneesh, Kale, Abhijeet J., Dixit, Ambesh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
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
_version_ 1784769895460765696
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
work_keys_str_mv AT prakashchandra lowtemperaturehighlyrobusthydrogensensorusingpristineznonanorodswithenhancedresponseandselectivity
AT chaurasiyarajneesh lowtemperaturehighlyrobusthydrogensensorusingpristineznonanorodswithenhancedresponseandselectivity
AT kaleabhijeetj lowtemperaturehighlyrobusthydrogensensorusingpristineznonanorodswithenhancedresponseandselectivity
AT dixitambesh lowtemperaturehighlyrobusthydrogensensorusingpristineznonanorodswithenhancedresponseandselectivity