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

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • 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

Organisaatiot

  • Saratov State Technical University
  • Skolkovo Institute of Science and Technology
  • Kotel'nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences
  • Moldova State University

Kuvaus

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.

Yksityiskohdat

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

ID: 40832642