CO sensitivity of the PtO/SnO2 and PdO/SnO2 layer structures: Kelvin probe and XPS analysis

G. Kiss, V. K. Josepovits, K. Kovács, B. Ostrick, M. Fleischer, H. Meixner, F. Réti

Research output: Contribution to journalConference article

16 Citations (Scopus)

Abstract

The CO sensitivity of Pt(NH3)2(NO2)2 and Pd(NH3)2(NO2)2 impregnated SnO2 thick layers was measured by following the work function change, at 90 °C. The complexes were decomposed by heat treatments in air, in the temperature range of 150-350 °C. The composition of the surface layer was studied by XPS. The maximum CO sensitivity, the optimal response and recovery times-measured by Kelvin probe - were found, if PtO or PdO were present on the surface.

Original languageEnglish
Pages (from-to)115-118
Number of pages4
JournalThin Solid Films
Volume436
Issue number1
DOIs
Publication statusPublished - Jul 22 2003
EventPapers From The 3rd Seminar on SGS 2002 - Ustron, Poland
Duration: Sep 19 2002Sep 22 2002

Keywords

  • CO sensitivity
  • SnO
  • Work function
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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