The Ti wire functionalized with inherent TiO2 nanotubes by anodization as one-electrode gas sensor: A proof-of-concept study

Andrey V. Lashkov, Fedor S. Fedorov*, Mikhail Yu Vasilkov, Alexey V. Kochetkov, Ilia V. Belyaev, Ilia A. Plugin, Alexey S. Varezhnikov, Anastasia N. Filipenko, Stepan A. Romanov, Albert G. Nasibulin, Ghenadii Korotcenkov, Victor V. Sysoev

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

We propose a Ti wire functionalized with inherent anatase TiO2 nanotubes by an anodization process to serve as a one-electrode gas sensor. The design is similar to other known one-electrode gas sensors when the wire is employed both as a heater and measuring resistive element. We discuss the low-cost fabrication protocol, the structure of the sensor characterized by Raman spectroscopy and electron microscopy, and show the proof-of-concept sensor responses to a few organic vapors, acetone and alcohols, in mixture with air. We have found the response-to-concentration curves to follow a linear fit with a detection limit below 1000 ppm. These findings enlarge the range of possible gas sensor architectures based on nanostructured material for research and practical applications.

AlkuperäiskieliEnglanti
Artikkeli127615
JulkaisuSensors and Actuators, B: Chemical
Vuosikerta306
DOI - pysyväislinkit
TilaJulkaistu - 1 maaliskuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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  • Siteeraa tätä

    Lashkov, A. V., Fedorov, F. S., Vasilkov, M. Y., Kochetkov, A. V., Belyaev, I. V., Plugin, I. A., ... Sysoev, V. V. (2020). The Ti wire functionalized with inherent TiO2 nanotubes by anodization as one-electrode gas sensor: A proof-of-concept study. Sensors and Actuators, B: Chemical, 306, [127615]. https://doi.org/10.1016/j.snb.2019.127615