Author, as appears in the article.: Navarrete È, Bittencourt C, Noirfalise X, Umek P, González E, Güell F, Llobet E

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: Llobet Valero, Eduard / Navarrete Gatell, Èric

Keywords: Tungsten trioxide Nanowires Gas sensors Cobalt oxide

Abstract: © 2019 Elsevier B.V. A two-step procedure was implemented to obtain tungsten oxide nanowires (WO3) doped with cobalt oxide nanoparticles employing W(CO)6 and the metal-organic precursor Co(acac)2. In the first step, tungsten oxide nanowires were grown at 400 °C using an aerosol assisted chemical vapor deposition system (AA-CVD) and subsequently annealed at 500 ºC for 2 h in dry air. Then, cobalt oxide loading (at different dose levels) of the nanowires was performed via a second AA-CVD process. These hybrid nanomaterials were grown on top of commercial alumina substrates that comprised interdigitated electrodes and a heating element. The response of these nanomaterials toward H2S, ethanol H2 and ammonia is investigated and discussed. Co-loaded tungsten oxide is well suited for detecting ammonia under dry conditions and hydrogen sulfide in humid environments.

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0925-4005

Author's mail: eric.navarrete@urv.cat eduard.llobet@urv.cat eric.navarrete@urv.cat

Author identifier: 0000-0001-6164-4342

Record's date: 2023-09-24

Papper version: info:eu-repo/semantics/acceptedVersion

Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0925400519310676

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: 298 (126868):

APA: Navarrete È, Bittencourt C, Noirfalise X, Umek P, González E, Güell F, Llobet E (2019). WO3 nanowires loaded with cobalt oxide nanoparticles, deposited by a two-step AACVD for gas sensing applications. Sensors And Actuators B: Chemical, 298(126868), -. DOI: 10.1016/j.snb.2019.126868

Article's DOI: 10.1016/j.snb.2019.126868

Entity: Universitat Rovira i Virgili

Journal publication year: 2019

Publication Type: Journal Publications