Enhanced gas sensing characteristics of Au-Loaded TiO2 Nanotube Sensors

Min Hyun Seo, Masayoshi Yuasa, Tetsuya Kida, Jeung Soo Huh, Noboru Yamazoe, Kengo Shimanoe

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)

抄録

The loading of noble metals was carried out to enhance the gas sensing characteristics of TiO2 nanotube-based sensors. Using a photochemical deposition method, Au nanoparticles were successfully deposited on TiO 2 nanotubes prepared by a hydrothermal method in a highly-dispersed state. The sensor device using a porous film composed of the Au-loaded (0.5 wt%) TiO2 nanotubes exhibited improved sensor responses to 10-50 ppm toluene in air at 500 °C. The sensor response was about two times higher than that of a sensor using commercial TiO2 nanoparticles (degussa P-25). The results demonstrate that the Au loading is a very efficient method for improving the sensing characteristics of TiO2 nanotube-based sensors operative at high temperatures.

本文言語英語
ページ(範囲)26-30
ページ数5
ジャーナルSensor Letters
9
1
DOI
出版ステータス出版済み - 1 1 2011

All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学
  • 電子工学および電気工学

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