title: Effects of high-humidity aging on platinum, palladium, and gold loaded tin oxide--volatile organic compound sensors.
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/SnO(2)) thick films. The sensor responses of the high-humidity aged Pt,Pd,Au/SnO(2), a non-aged Pt,Pd,Au/SnO(2), and a high-humidity aged Pt/SnO(2) 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/SnO(2) but not effective for the Pt/SnO(2). The mechanism of the high-humidity aging effects is discussed based on the change of surface state of the SnO(2) particles.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, Japan. itoh-toshio@aist.go.jp
authors.forename: Toshio
authors.initials: T
authors.lastname: Itoh
authors.forename: Ichiro
authors.initials: I
authors.lastname: Matsubara
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kadosaki
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Sakai
authors.forename: Woosuck
authors.initials: W
authors.lastname: Shin
authors.forename: Noriya
authors.initials: N
authors.lastname: Izu
authors.forename: Maiko
authors.initials: M
authors.lastname: Nishibori
mesh_terms: D006046:Gold / Q000737:chemistry*; D006813:Humidity; D010165:Palladium / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D017971:Tin Compounds; D055549:Volatile Organic Compounds; D010984:Platinum; D010165:Palladium; D006046:Gold; C045358:stannic oxide