Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Gas sensing with gold-decorated vertically aligned carbon nanotubes

  • Identification data

    Identifier: PC:831
    Authors:
    Colomer, J.F.Bittencourt, C.Llobet, E.Snyders, R.Reckinger, N.González-León, O.Scardamaglia, M.Mudimela, P.R.
    Abstract:
    10.3762/bjnano.5.104
  • Others:

    Author, as appears in the article.: Colomer, J.F. Bittencourt, C. Llobet, E. Snyders, R. Reckinger, N. González-León, O. Scardamaglia, M. Mudimela, P.R.
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    Abstract: Vertically aligned carbon nanotubes of different lengths (150, 300, 500 µm) 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 µm 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.
    Thematic Areas: Gas detectors
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2190-4286
    Last page: 918
    Journal volume: 5
    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/
    Article's DOI: 10.3762/bjnano.5.104
    Entity: Universitat Rovira i Virgili.
    Journal publication year: 2014
    First page: 910