Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Gas sensing with gold-decorated vertically aligned carbon nanotubes

  • Identification data

    Identifier: imarina:9285404
    Authors:
    Mudimela, Prasantha RScardamaglia, MattiaGonzalez-Leon, OriolReckinger, NicolasSnyders, RonyLlobet, EduardBittencourt, CarlaColomer, Jean-Francois
    Abstract:
    Vertically aligned carbon nanotubes of different lengths (150, 300, 500 ?m) synthesized by thermal chemical vapor deposition and decorated with gold nanoparticles were investigated as gas sensitive materials for detecting nitrogen dioxide (NO2) at room temperature. Gold nanoparticles of about 6 nm in diameter were sputtered on the top surface of the carbon nanotube forests to enhance the sensitivity to the pollutant gas. We showed that the sensing response to nitrogen dioxide depends on the nanotube length. The optimum was found to be 300 ?m for getting the higher response. When the background humidity level was changed from dry to 50% relative humidity, an increase in the response to NO2 was observed for all the sensors, regardless of the nanotube length. © 2014 Mudimela et a.
  • Others:

    Author, as appears in the article.: Mudimela, Prasantha R; Scardamaglia, Mattia; Gonzalez-Leon, Oriol; Reckinger, Nicolas; Snyders, Rony; Llobet, Eduard; Bittencourt, Carla; Colomer, Jean-Francois
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Llobet Valero, Eduard
    Keywords: Vertically aligned carbon nanotube Thermal cvd Thermal chemical vapor deposition Room temperature Nitrogen oxides Nitrogen dioxides Nanotube forests Metal nanoparticles Gold nanoparticles Gold Gas sensors Gas sensitive material Gas detectors Decoration Chemical vapor deposition Chemical sensors Carbon nanotubes Atmospheric humidity Alignment metal nanoparticles gas sensors decoration carbon nanotubes alignment
    Abstract: Vertically aligned carbon nanotubes of different lengths (150, 300, 500 ?m) synthesized by thermal chemical vapor deposition and decorated with gold nanoparticles were investigated as gas sensitive materials for detecting nitrogen dioxide (NO2) at room temperature. Gold nanoparticles of about 6 nm in diameter were sputtered on the top surface of the carbon nanotube forests to enhance the sensitivity to the pollutant gas. We showed that the sensing response to nitrogen dioxide depends on the nanotube length. The optimum was found to be 300 ?m for getting the higher response. When the background humidity level was changed from dry to 50% relative humidity, an increase in the response to NO2 was observed for all the sensors, regardless of the nanotube length. © 2014 Mudimela et a.
    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
    Author identifier: 0000-0001-6164-4342
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.beilstein-journals.org/bjnano/articles/5/104
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Beilstein Journal Of Nanotechnology. 5 (1): 910-918
    APA: Mudimela, Prasantha R; Scardamaglia, Mattia; Gonzalez-Leon, Oriol; Reckinger, Nicolas; Snyders, Rony; Llobet, Eduard; Bittencourt, Carla; Colomer, Jea (2014). Gas sensing with gold-decorated vertically aligned carbon nanotubes. Beilstein Journal Of Nanotechnology, 5(1), 910-918. DOI: 10.3762/bjnano.5.104
    Article's DOI: 10.3762/bjnano.5.104
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2014
    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
    Vertically aligned carbon nanotube
    Thermal cvd
    Thermal chemical vapor deposition
    Room temperature
    Nitrogen oxides
    Nitrogen dioxides
    Nanotube forests
    Metal nanoparticles
    Gold nanoparticles
    Gold
    Gas sensors
    Gas sensitive material
    Gas detectors
    Decoration
    Chemical vapor deposition
    Chemical sensors
    Carbon nanotubes
    Atmospheric humidity
    Alignment
    metal nanoparticles
    gas sensors
    decoration
    carbon nanotubes
    alignment
    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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