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

研究成果: Contribution to journalArticle

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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.

元の言語英語
ページ(範囲)214-216
ページ数3
ジャーナルMaterials Letters
179
DOI
出版物ステータス出版済み - 9 15 2016

All Science Journal Classification (ASJC) codes

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

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