Volatile Organic Compound Monitoring during Extreme Wildfires

Detalhes bibliográficos
Autor(a) principal: Magro, Cátia
Data de Publicação: 2022
Outros Autores: Gonçalves, Oriana C., Morais, Marcelo, Ribeiro, Paulo A., Sério, Susana, Vieira, Pedro, Raposo, Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/145913
Resumo: grants no. UIDB/FIS/04559/2020 and no. UIDP/FIS/04559/2020 (LIBPhys) from FCT/MCTES, Portugal.
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spelling Volatile Organic Compound Monitoring during Extreme WildfiresAssessing the Potential of Sensors Based on LbL and Sputtering Filmselectronic noseeucalyptolextreme wildfiresimpedance spectroscopylayer-by-layersputteringvolatile organic compoundsα-pineneAnalytical ChemistryInformation SystemsBiochemistryAtomic and Molecular Physics, and OpticsInstrumentationElectrical and Electronic Engineeringgrants no. UIDB/FIS/04559/2020 and no. UIDP/FIS/04559/2020 (LIBPhys) from FCT/MCTES, Portugal.A new theory suggests that flammable gases generated by heated vegetation, in particular the volatile organic compounds (VOC) common to Mediterranean plants, may, under certain topographic and wind conditions, accumulate in locations where, after the arrival of the ignition source, they rapidly burst into flames as explosions. Hence, there is a need for the development of a system that can monitor the development of these compounds. In this work, a sensor's array is proposed as a method for monitoring the amount of eucalyptol and α-pinene, the major VOC compounds of the Eucalyptus and Pine trees. The detection of the target compounds was assessed using the impedance spectroscopy response of thin films. Combinations of layers of polyelectrolytes, such as poly(allylamine hydrochloride) (PAH), polyethyleneimine (PEI), poly(sodium 4-sytrenesulfonate) (PSS) graphene oxide (GO), and non/functionalized multiwall nanotubes (MWCNT-COOH or MWCNT), namely, PAH/GO, PEI/PSS, PEI/GO, PAH/MWCNT, PAH/MWCNT-COOH, films, and TiO2 and ZnO sputtered films, were deposited onto ceramic supports coated with gold interdigitated electrodes. The results showed that concentrations of the target VOCs, within the range of 68 to 999 ppmv, can be easily distinguished by analyzing the impedance spectra, particularly in the case of the ZnO- and PAH/GO-film-based sensors, which showed the best results in the detection of the target compounds. Through principal component analysis (PCA), the best set of features attained for the ZnO and PAH/GO based sensor devices revealed a linear trend of the PCA's first principal component with the concentration within the range 109 and 807 ppmv. Thus, the values of sensitivity to eucalyptol and α-pinene concentrations, which were (2.2 ± 0.3) × 10-4 and (5.0 ± 0.7) × 10-5 per decade, respectively, as well as resolutions of 118 and 136 ppbv, respectively, were identified.DF – Departamento de FísicaLIBPhys-UNLRUNMagro, CátiaGonçalves, Oriana C.Morais, MarceloRibeiro, Paulo A.Sério, SusanaVieira, PedroRaposo, Maria2022-11-30T22:12:07Z2022-09-032022-09-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/145913eng1424-8220PURE: 46688846https://doi.org/10.3390/s22176677info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:26:40Zoai:run.unl.pt:10362/145913Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:52:20.341303Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Volatile Organic Compound Monitoring during Extreme Wildfires
Assessing the Potential of Sensors Based on LbL and Sputtering Films
title Volatile Organic Compound Monitoring during Extreme Wildfires
spellingShingle Volatile Organic Compound Monitoring during Extreme Wildfires
Magro, Cátia
electronic nose
eucalyptol
extreme wildfires
impedance spectroscopy
layer-by-layer
sputtering
volatile organic compounds
α-pinene
Analytical Chemistry
Information Systems
Biochemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Electrical and Electronic Engineering
title_short Volatile Organic Compound Monitoring during Extreme Wildfires
title_full Volatile Organic Compound Monitoring during Extreme Wildfires
title_fullStr Volatile Organic Compound Monitoring during Extreme Wildfires
title_full_unstemmed Volatile Organic Compound Monitoring during Extreme Wildfires
title_sort Volatile Organic Compound Monitoring during Extreme Wildfires
author Magro, Cátia
author_facet Magro, Cátia
Gonçalves, Oriana C.
Morais, Marcelo
Ribeiro, Paulo A.
Sério, Susana
Vieira, Pedro
Raposo, Maria
author_role author
author2 Gonçalves, Oriana C.
Morais, Marcelo
Ribeiro, Paulo A.
Sério, Susana
Vieira, Pedro
Raposo, Maria
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
LIBPhys-UNL
RUN
dc.contributor.author.fl_str_mv Magro, Cátia
Gonçalves, Oriana C.
Morais, Marcelo
Ribeiro, Paulo A.
Sério, Susana
Vieira, Pedro
Raposo, Maria
dc.subject.por.fl_str_mv electronic nose
eucalyptol
extreme wildfires
impedance spectroscopy
layer-by-layer
sputtering
volatile organic compounds
α-pinene
Analytical Chemistry
Information Systems
Biochemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Electrical and Electronic Engineering
topic electronic nose
eucalyptol
extreme wildfires
impedance spectroscopy
layer-by-layer
sputtering
volatile organic compounds
α-pinene
Analytical Chemistry
Information Systems
Biochemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Electrical and Electronic Engineering
description grants no. UIDB/FIS/04559/2020 and no. UIDP/FIS/04559/2020 (LIBPhys) from FCT/MCTES, Portugal.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-30T22:12:07Z
2022-09-03
2022-09-03T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/145913
url http://hdl.handle.net/10362/145913
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1424-8220
PURE: 46688846
https://doi.org/10.3390/s22176677
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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