Vanadium oxide loading on tin dioxide nanoparticles for improving gas detection in a humid atmosphere

Koichi Suematsu, Nan Ma, Kazuya Kodama, Masayoshi Yuasa, Tetsuya Kida, Kengo Shimanoe

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Vanadium oxide (V2O5) was successfully loaded on tin dioxide (SnO2) nanoparticles using an impregnation method to improve the sensor response for detecting combustible gases in a humid atmosphere. As seen from field-emission scanning electron microscopy images, appropriate pores for gas diffusion are formed on the nanoparticles. The sensor response to combustible gases such as hydrogen and ethanol were evaluated at elevated temperatures in a humid atmosphere, showing clear improvement with 1 wt% V2O5 loading on the SnO2 nanoparticles. The improvement in performance was attributed to the role of V2O5 as an oxygen provider in the air atmosphere with combustible gas and the ability for V2O5 to undergo reduction. Thus, adding a catalytic metal oxide provides a simple way to overcome hydroxyl poisoning on a SnO2 surface.

Original languageEnglish
Pages (from-to)214-216
Number of pages3
JournalMaterials Letters
Volume179
DOIs
Publication statusPublished - Sep 15 2016

Fingerprint

Tin dioxide
Vanadium
vanadium oxides
dioxides
Oxides
tin
Gases
Nanoparticles
atmospheres
nanoparticles
gases
gaseous diffusion
Diffusion in gases
poisoning
sensors
Sensors
Impregnation
Field emission
metal oxides
field emission

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Vanadium oxide loading on tin dioxide nanoparticles for improving gas detection in a humid atmosphere. / Suematsu, Koichi; Ma, Nan; Kodama, Kazuya; Yuasa, Masayoshi; Kida, Tetsuya; Shimanoe, Kengo.

In: Materials Letters, Vol. 179, 15.09.2016, p. 214-216.

Research output: Contribution to journalArticle

Suematsu, Koichi ; Ma, Nan ; Kodama, Kazuya ; Yuasa, Masayoshi ; Kida, Tetsuya ; Shimanoe, Kengo. / Vanadium oxide loading on tin dioxide nanoparticles for improving gas detection in a humid atmosphere. In: Materials Letters. 2016 ; Vol. 179. pp. 214-216.
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