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Gas Sensing Properties of Carbon Nanotubes Decorated with Iridium Oxide Nanoparticles

  • Dades identificatives

    Identificador: imarina:9230887
    Autors:
    Casanova-Cháfer, JuanNavarrete, ÈricLlobet, Eduard
    Resum:
    The properties of Iridium oxide (IrO2) decorated Multi-Wall Carbon Nanotubes (IrO2-MWCNTs) are studied for detecting nitrogen dioxide and ammonia vapors. IrO2 nanoparticles were synthetized using a hydrolysis and acid condensation growth mechanism, and subsequently employed for decorating the sidewalls of carbon nanotubes. Decorated MWCNTs films were deposited onto SiO2/Si substrates for achieving chemoresistive gas sensors. NO2 and NH3 gases were detected under different experimental conditions. Higher and more stable responses towards NH3 and NO2 were observed for iridium-oxide nanoparticle decorated MWCNT material, compared to bare MWCNT material. Raman Spectroscopy was employed to study the nanomaterials and the optimal operating temperatures were determined.
  • Altres:

    Autor segons l'article: Casanova-Cháfer, Juan; Navarrete, Èric; Llobet, Eduard
    Departament: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/s de la URV: Casanova Chafer, Juan / Llobet Valero, Eduard / Navarrete Gatell, Èric
    Resum: The properties of Iridium oxide (IrO2) decorated Multi-Wall Carbon Nanotubes (IrO2-MWCNTs) are studied for detecting nitrogen dioxide and ammonia vapors. IrO2 nanoparticles were synthetized using a hydrolysis and acid condensation growth mechanism, and subsequently employed for decorating the sidewalls of carbon nanotubes. Decorated MWCNTs films were deposited onto SiO2/Si substrates for achieving chemoresistive gas sensors. NO2 and NH3 gases were detected under different experimental conditions. Higher and more stable responses towards NH3 and NO2 were observed for iridium-oxide nanoparticle decorated MWCNT material, compared to bare MWCNT material. Raman Spectroscopy was employed to study the nanomaterials and the optimal operating temperatures were determined.
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: eric.navarrete@urv.cat eduard.llobet@urv.cat juan.casanova@urv.cat
    Identificador de l'autor: 0000-0001-6164-4342
    Data d'alta del registre: 2023-11-27
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.mdpi.com/2504-3900/2/13/874
    Referència a l'article segons font original: Proceedings. 2 (13): 874-
    Referència de l'ítem segons les normes APA: Casanova-Cháfer, Juan; Navarrete, Èric; Llobet, Eduard (2018). Gas Sensing Properties of Carbon Nanotubes Decorated with Iridium Oxide Nanoparticles. Proceedings, 2(13), 874-. DOI: 10.3390/proceedings2130874
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.3390/proceedings2130874
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2018
    Tipus de publicació: Journal Publications
  • Paraules clau:

    carbon nanotubes; iridium oxide; metal nanoparticles; gas sensing
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