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Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit

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Bibliographic Details
Main Author: Pham, Minh T.
Other Authors: Luong, Hoang M.
Format: Article
Language:English
Published: ACS Appl. Nano Mater. 2021 2021
Subjects:
ppb limit of detection
composite hole arrays
magnetic hydride resistance nanonetwork
electrical hydrogen sensor
Online Access:https://pubs.acs.org/doi/10.1021/acsanm.1c00169
https://dlib.phenikaa-uni.edu.vn/handle/PNK/1850
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spelling oai:localhost:PNK-18502022-08-17T05:54:41Z Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit Pham, Minh T. Luong, Hoang M. Pham, Huy T. Guin, Tyler Zhao, Yiping George K., Larsen Nguyen, Tho D. ppb limit of detection composite hole arrays magnetic hydride resistance nanonetwork electrical hydrogen sensor Q1 As hydrogen gas increasingly becomes critical as a carbon-free energy carrier, the demand for robust hydrogen sensors for leak detection and concentration monitor will continue to rise. However, to date, there are no lightweight sensors capable of meeting the required performance metrics for the safe handling of hydrogen. Here, we report an electrical hydrogen gas sensor platform based on a resistance nanonetwork derived from Pd-Co composite hole arrays (CHAs) on a glass substrate, which meets or exceeds these metrics. In optimal nanofabrication conditions, a single poly(methyl methacrylate)(PMMA)-coated CHA nanosensor exhibits a response time (t80) of 1.0 s at the lower flammability limit of H2 (40 mbar), incredible sensor accuracy (<1% across 5 decades of H2 pressure), and an extremely low limit of detection (LOD) of <10 ppb at room temperature. Remarkably, these nanosensors are extremely inert against CO and O2 gas interference and display robust long-term stability in air, suffering no loss of performance over 2 months. Additionally, we demonstrate that the unique nanomorphology renders the sensors insensitive to operation voltage/current with diminutive power requirement (∼2 nW) and applied magnetic field (up to 3 kOe), a crucial metric for leak detection and concentration control. 2021-06-18T02:29:50Z 2021-06-18T02:29:50Z 2021 Article Working Paper https://pubs.acs.org/doi/10.1021/acsanm.1c00169 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1850 doi.org/10.1021/acsanm.1c00169 en ACS Appl. Nano Mater. 2021
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic ppb limit of detection
composite hole arrays
magnetic hydride resistance nanonetwork
electrical hydrogen sensor
spellingShingle ppb limit of detection
composite hole arrays
magnetic hydride resistance nanonetwork
electrical hydrogen sensor
Pham, Minh T.
Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
description Q1
author2 Luong, Hoang M.
author_facet Luong, Hoang M.
Pham, Minh T.
format Article
author Pham, Minh T.
author_sort Pham, Minh T.
title Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
title_short Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
title_full Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
title_fullStr Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
title_full_unstemmed Pd80Co20 Nanohole Arrays Coated with Poly(methyl methacrylate) for High-Speed Hydrogen Sensing with a Part-per-Billion Detection Limit
title_sort pd80co20 nanohole arrays coated with poly(methyl methacrylate) for high-speed hydrogen sensing with a part-per-billion detection limit
publisher ACS Appl. Nano Mater. 2021
publishDate 2021
url https://pubs.acs.org/doi/10.1021/acsanm.1c00169
https://dlib.phenikaa-uni.edu.vn/handle/PNK/1850
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score 8.891145

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