Cargando…

Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications

We report a breath hydrogen analyzer based on Pd-coated SnO(2) nanorods (Pd-SnO(2) NRs) sensor integrated into a miniaturized gas chromatography (GC) column. The device can measure a wide range of hydrogen (1–100 ppm), within 100 s, using a small volume of human breath (1 mL) without pre-concentrati...

Descripción completa

Detalles Bibliográficos
Autores principales: Jung, Hwaebong, Hwang, Junho, Choe, Yong-Sahm, Lee, Hyun-Sook, Lee, Wooyoung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914855/
https://www.ncbi.nlm.nih.gov/pubmed/35271202
http://dx.doi.org/10.3390/s22052056
_version_ 1784667855187345408
author Jung, Hwaebong
Hwang, Junho
Choe, Yong-Sahm
Lee, Hyun-Sook
Lee, Wooyoung
author_facet Jung, Hwaebong
Hwang, Junho
Choe, Yong-Sahm
Lee, Hyun-Sook
Lee, Wooyoung
author_sort Jung, Hwaebong
collection PubMed
description We report a breath hydrogen analyzer based on Pd-coated SnO(2) nanorods (Pd-SnO(2) NRs) sensor integrated into a miniaturized gas chromatography (GC) column. The device can measure a wide range of hydrogen (1–100 ppm), within 100 s, using a small volume of human breath (1 mL) without pre-concentration. Especially, the mini-GC integrated with Pd-SnO(2) NRs can detect 1 ppm of H(2), as a lower detection limit, at a low operating temperature of 152 °C. Furthermore, when the breath hydrogen analyzer was exposed to a mixture of interfering gases, such as carbon dioxide, nitrogen, methane, and acetone, it was found to be capable of selectively detecting only H(2). We found that the Pd-SnO(2) NRs were superior to other semiconducting metal oxides that lack selectivity in H(2) detection. Our study reveals that the Pd-SnO(2) NRs integrated into the mini-GC device can be utilized in breath hydrogen analyzers to rapidly and accurately detect hydrogen due to its high selectivity and sensitivity.
format Online
Article
Text
id pubmed-8914855
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-89148552022-03-12 Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications Jung, Hwaebong Hwang, Junho Choe, Yong-Sahm Lee, Hyun-Sook Lee, Wooyoung Sensors (Basel) Article We report a breath hydrogen analyzer based on Pd-coated SnO(2) nanorods (Pd-SnO(2) NRs) sensor integrated into a miniaturized gas chromatography (GC) column. The device can measure a wide range of hydrogen (1–100 ppm), within 100 s, using a small volume of human breath (1 mL) without pre-concentration. Especially, the mini-GC integrated with Pd-SnO(2) NRs can detect 1 ppm of H(2), as a lower detection limit, at a low operating temperature of 152 °C. Furthermore, when the breath hydrogen analyzer was exposed to a mixture of interfering gases, such as carbon dioxide, nitrogen, methane, and acetone, it was found to be capable of selectively detecting only H(2). We found that the Pd-SnO(2) NRs were superior to other semiconducting metal oxides that lack selectivity in H(2) detection. Our study reveals that the Pd-SnO(2) NRs integrated into the mini-GC device can be utilized in breath hydrogen analyzers to rapidly and accurately detect hydrogen due to its high selectivity and sensitivity. MDPI 2022-03-07 /pmc/articles/PMC8914855/ /pubmed/35271202 http://dx.doi.org/10.3390/s22052056 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jung, Hwaebong
Hwang, Junho
Choe, Yong-Sahm
Lee, Hyun-Sook
Lee, Wooyoung
Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title_full Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title_fullStr Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title_full_unstemmed Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title_short Highly Sensitive and Selective Detection of Hydrogen Using Pd-Coated SnO(2) Nanorod Arrays for Breath-Analyzer Applications
title_sort highly sensitive and selective detection of hydrogen using pd-coated sno(2) nanorod arrays for breath-analyzer applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914855/
https://www.ncbi.nlm.nih.gov/pubmed/35271202
http://dx.doi.org/10.3390/s22052056
work_keys_str_mv AT junghwaebong highlysensitiveandselectivedetectionofhydrogenusingpdcoatedsno2nanorodarraysforbreathanalyzerapplications
AT hwangjunho highlysensitiveandselectivedetectionofhydrogenusingpdcoatedsno2nanorodarraysforbreathanalyzerapplications
AT choeyongsahm highlysensitiveandselectivedetectionofhydrogenusingpdcoatedsno2nanorodarraysforbreathanalyzerapplications
AT leehyunsook highlysensitiveandselectivedetectionofhydrogenusingpdcoatedsno2nanorodarraysforbreathanalyzerapplications
AT leewooyoung highlysensitiveandselectivedetectionofhydrogenusingpdcoatedsno2nanorodarraysforbreathanalyzerapplications