Effects of high-humidity aging on platinum, palladium, and gold loaded tin oxide-volatile organic compound sensors

Toshio Itoh, Ichiro Matsubara, Masahiro Kadosaki, Yuichi Sakai, Woosuck Shin, Noriya Izu, Maikom Nishibori

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

This study is an investigation of high-humidity aging effects on the total volatile organic compound (T-VOC) gas-sensing properties of platinum, palladium, and gold-loaded tin oxide (Pt,Pd,Au/SnO2) thick films. The sensor responses of the high-humidity aged Pt,Pd,Au/SnO2, a non-aged Pt,Pd,Au/SnO2, and a high-humidity aged Pt/SnO2 to T-VOC test gas have been measured. The high-humidity aging is an effective treatment for resistance to humidity change for the Pt,Pd,Au/SnO2 but not effective for the Pt/SnO2. The mechanism of the high-humidity aging effects is discussed based on the change of surface state of the SnO2 particles.

Original languageEnglish
Pages (from-to)6513-6521
Number of pages9
JournalSensors
Volume10
Issue number7
DOIs
Publication statusPublished - Jul 1 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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