Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Metal loaded nano-carbon gas sensor array for pollutant detection

  • Dades identificatives

    Identificador: imarina:9243777
    Autors:
    Behi, SyrineCasanova-Chafer, JuanGonzalez, ErnestoBohli, NadraLlobet, EduardAbdelghani, Adnane
    Resum:
    Many research works report a sensitive detection of a wide variety of gas species. However, their in-lab detection is usually performed by using single gases and, therefore, selectivity often remains an unsolved issue. This paper reports a four-sensor array employing different nano-carbon sensitive layers (bare graphene, SnO2@Graphene, WO3@Graphene, and Au@CNTs). The different gas-sensitive films were characterised via several techniques such as FESEM, TEM, and Raman. First, an extensive study was performed to detect isolated NO2, CO2, and NH3 molecules, unravelling the sensing mechanism at the operating temperatures applied. Besides, the effect of the ambient moisture was also evaluated. Afterwards, a model for target gas identification and concentration prediction was developed. Indeed, the sensor array was used in mixtures of NO2 and CO2 for studying the cross-sensitivity and developing a calibration model. As a result, the NO2 detection with different background levels of CO2 was achieved with an R2 of 0.987 and an RMSE of about 22 ppb.© 2022 IOP Publishing Ltd.
  • Altres:

    Autor segons l'article: Behi, Syrine; Casanova-Chafer, Juan; Gonzalez, Ernesto; Bohli, Nadra; Llobet, Eduard; Abdelghani, Adnane
    Departament: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/s de la URV: Casanova Chafer, Juan / GONZÁLEZ GARCÍA, ELENA / Llobet Valero, Eduard
    Paraules clau: Sensor array Nitrogen-dioxide Metal nanoparticle Graphene Gas sensing Carbon nanotubes vapor sensor array no2 nanotubes nanomaterials metal nanoparticle graphene gas sensing carbon nanotubes
    Resum: Many research works report a sensitive detection of a wide variety of gas species. However, their in-lab detection is usually performed by using single gases and, therefore, selectivity often remains an unsolved issue. This paper reports a four-sensor array employing different nano-carbon sensitive layers (bare graphene, SnO2@Graphene, WO3@Graphene, and Au@CNTs). The different gas-sensitive films were characterised via several techniques such as FESEM, TEM, and Raman. First, an extensive study was performed to detect isolated NO2, CO2, and NH3 molecules, unravelling the sensing mechanism at the operating temperatures applied. Besides, the effect of the ambient moisture was also evaluated. Afterwards, a model for target gas identification and concentration prediction was developed. Indeed, the sensor array was used in mixtures of NO2 and CO2 for studying the cross-sensitivity and developing a calibration model. As a result, the NO2 detection with different background levels of CO2 was achieved with an R2 of 0.987 and an RMSE of about 22 ppb.© 2022 IOP Publishing Ltd.
    Àrees temàtiques: Química Physics, applied Odontología Nanoscience and nanotechnology Nanoscience & nanotechnology Medicina veterinaria Medicina ii Medicina i Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materials science Materiais Matemática / probabilidade e estatística Interdisciplinar General medicine General materials science General chemistry Farmacia Ensino Engineering, multidisciplinary Engineering Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrical and electronic engineering Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Chemistry (miscellaneous) Chemistry (all) Biotecnología Bioengineering Astronomia / física Antropologia / arqueologia
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: juan.casanova@urv.cat eduard.llobet@urv.cat
    Identificador de l'autor: 0000-0001-6164-4342
    Data d'alta del registre: 2024-10-12
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://iopscience.iop.org/article/10.1088/1361-6528/ac4e43/pdf
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Nanotechnology. 33 (19): 195501-
    Referència de l'ítem segons les normes APA: Behi, Syrine; Casanova-Chafer, Juan; Gonzalez, Ernesto; Bohli, Nadra; Llobet, Eduard; Abdelghani, Adnane (2022). Metal loaded nano-carbon gas sensor array for pollutant detection. Nanotechnology, 33(19), 195501-. DOI: 10.1088/1361-6528/ac4e43
    DOI de l'article: 10.1088/1361-6528/ac4e43
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2022
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Bioengineering,Chemistry (Miscellaneous),Electrical and Electronic Engineering,Engineering,Engineering, Multidisciplinary,Materials Science,Materials Science (Miscellaneous),Materials Science, Multidisciplinary,Mechanical Engineering,Mechanics of Materials,Nanoscience & Nanotechnology,Nanoscience and Nanotechnology,Physics, Applied
    Sensor array
    Nitrogen-dioxide
    Metal nanoparticle
    Graphene
    Gas sensing
    Carbon nanotubes
    vapor
    sensor array
    no2
    nanotubes
    nanomaterials
    metal nanoparticle
    graphene
    gas sensing
    carbon nanotubes
    Química
    Physics, applied
    Odontología
    Nanoscience and nanotechnology
    Nanoscience & nanotechnology
    Medicina veterinaria
    Medicina ii
    Medicina i
    Mechanics of materials
    Mechanical engineering
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    Materials science
    Materiais
    Matemática / probabilidade e estatística
    Interdisciplinar
    General medicine
    General materials science
    General chemistry
    Farmacia
    Ensino
    Engineering, multidisciplinary
    Engineering
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Electrical and electronic engineering
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Bioengineering
    Astronomia / física
    Antropologia / arqueologia
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