• DocumentCode
    446555
  • Title

    Temperature dependence of Co detection by SnO2: Pd sensitive films gas sensors

  • Author

    Bercu, M. ; Tomescu, A. ; Roescu, R. ; Moldovan, C.

  • Author_Institution
    Fac. of Phys., Bucharest Univ., Romania
  • Volume
    1
  • fYear
    2005
  • fDate
    3-5 Oct. 2005
  • Firstpage
    193
  • Abstract
    The electrical response to CO partial pressure in dry and wet synthetic air was investigated in the range Of 200-650°C, for SnO2 and SnO2-Pd thick films. Two peaks of sensitivity where found at 200, respectively 500°C in the case of CO interaction with the surface of SnO2 exposed to dry atmosphere. The presence of water vapours induced an extra peak of sensitivity at 300°C for pure SnO2 sensors. The influence of Pd catalyst on CO detection has been studied in wet at humid atmosphere versus temperature.
  • Keywords
    catalysts; gas sensors; palladium; thin films; tin compounds; 200 to 650 degC; SnO2:Pd; catalyst; electrical response; gas sensors; humid atmosphere; sensitivity; water vapours; Atmosphere; Atmospheric measurements; Electric resistance; Electrical resistance measurement; Electrodes; Gas detectors; Inorganic materials; Physics; Temperature dependence; Temperature sensors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Semiconductor Conference, 2005. CAS 2005 Proceedings. 2005 International
  • Print_ISBN
    0-7803-9214-0
  • Type

    conf

  • DOI
    10.1109/SMICND.2005.1558745
  • Filename
    1558745
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=446555