Gas sensing response of NiO nanoparticle films made by reactive gas deposition

C. Luyo, R. Ionescu, L. F. Reyes, Z. Topalian, W. Estrada, E. Llobet, C. G. Granqvist, P. Heszler

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

Nanocrystalline films comprised of NiO particles were prepared by advanced reactive gas evaporation and were investigated for gas sensing applications, specifically for detecting reducing (H2S) and oxidizing (NO2) species. The films were studied in as-deposited state and after annealing at temperatures up to 400 °C, and the sensors were operated from room temperature to 325 °C. The optimal operating temperature was in the 150-162 °C range for H2S and in the 100-125 °C range for NO2. We believe that this is the first report of high-sensitivity detection of H2S with NiO-based sensors, as well as the first proof that such sensors can work at room temperature.

Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume138
Issue number1
DOIs
Publication statusPublished - Apr 24 2009

Keywords

  • Gas sensing
  • Nanoparticles
  • Nickel oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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  • Cite this

    Luyo, C., Ionescu, R., Reyes, L. F., Topalian, Z., Estrada, W., Llobet, E., Granqvist, C. G., & Heszler, P. (2009). Gas sensing response of NiO nanoparticle films made by reactive gas deposition. Sensors and Actuators, B: Chemical, 138(1), 14-20. https://doi.org/10.1016/j.snb.2008.11.057