Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Enhanced detection of nitrogen dioxide via combined heating and pulsed UV operation of indium oxide nano-octahedra

  • Identification data

    Identifier: imarina:9285512
  • Authors:

    Gonzalez O
    Roso S
    Vilanova X
    Llobet E
  • Others:

    Author, as appears in the article.: Gonzalez O; Roso S; Vilanova X; Llobet E
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Llobet Valero, Eduard / Vilanova Salas, Javier
    Keywords: Uv-activated metal oxide Synthesis (chemical) Pulsed uv-light Pulsed uv light Nitrogen oxides Nitrogen dioxides Nitrogen dioxide Nitrogen Nanosensors Metals Metal oxides Indium oxide Indium Heating Gas sensing electrodes Gas sensing Gas detectors Dynamic gas sensing Chemical sensors Alumina uv-activated metal oxide nitrogen dioxide indium oxide dynamic gas sensing
    Abstract: We report on the use of combined heating and pulsed UV light activation of indium oxide gas sensors for enhancing their performance in the detection of nitrogen dioxide in air. Indium oxide nano-octahedra were synthesized at high temperature (900 °C) via vapour-phase transport and screen-printed onto alumina transducers that comprised interdigitated electrodes and a heating resistor. Compared to the standard, constant temperature operation of the sensor, mild heating (e.g., 100 °C) together with pulsed UV light irradiation employing a commercially available, 325 nm UV diode (square, 1 min period, 15 mA drive current signal), results in an up to 80-fold enhancement in sensitivity to nitrogen dioxide. Furthermore, this combined operation method allows for making savings in power consumption that range from 35% to over 80%. These results are achieved by exploiting the dynamics of sensor response under pulsed UV light, which convey important information for the quantitative analysis of nitrogen dioxide. © 2016 Gonzalez et al.
    Thematic Areas: Química Physics, applied Physics and astronomy (miscellaneous) Physics and astronomy (all) Nanoscience and nanotechnology Nanoscience & nanotechnology Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Interdisciplinar General physics and astronomy General materials science Engenharias iv Engenharias iii Electrical and electronic engineering Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: eduard.llobet@urv.cat xavier.vilanova@urv.cat
    Author identifier: 0000-0001-6164-4342 0000-0002-6245-7933
    Record's date: 2024-07-20
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.beilstein-journals.org/bjnano/articles/7/144
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Beilstein Journal Of Nanotechnology. 7 (1): 1507-1518
    APA: Gonzalez O; Roso S; Vilanova X; Llobet E (2016). Enhanced detection of nitrogen dioxide via combined heating and pulsed UV operation of indium oxide nano-octahedra. Beilstein Journal Of Nanotechnology, 7(1), 1507-1518. DOI: 10.3762/bjnano.7.144
    Article's DOI: 10.3762/bjnano.7.144
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2016
    Publication Type: Journal Publications
  • Keywords:

    Electrical and Electronic Engineering,Materials Science (Miscellaneous),Materials Science, Multidisciplinary,Nanoscience & Nanotechnology,Nanoscience and Nanotechnology,Physics and Astronomy (Miscellaneous),Physics, Applied
    Uv-activated metal oxide
    Synthesis (chemical)
    Pulsed uv-light
    Pulsed uv light
    Nitrogen oxides
    Nitrogen dioxides
    Nitrogen dioxide
    Nitrogen
    Nanosensors
    Metals
    Metal oxides
    Indium oxide
    Indium
    Heating
    Gas sensing electrodes
    Gas sensing
    Gas detectors
    Dynamic gas sensing
    Chemical sensors
    Alumina
    uv-activated metal oxide
    nitrogen dioxide
    indium oxide
    dynamic gas sensing
    Química
    Physics, applied
    Physics and astronomy (miscellaneous)
    Physics and astronomy (all)
    Nanoscience and nanotechnology
    Nanoscience & nanotechnology
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    Interdisciplinar
    General physics and astronomy
    General materials science
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Astronomia / física
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