Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods

J. Mink, J. Kristóf, A. De Battisti, S. Daolio, Cs Németh

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Surface species formed as a function of the temperature during the preparation of RuO2/TiO2 mixed oxide films were identified by emission FT-IR and FT-Raman spectroscopy. The formation of surface carbonyls from precursor mixtures of hydrated RuCl3 and titanium diisopropoxide bis-2,4-pentanedionate was confirmed. The intensity of the CO stretching band increases with decreasing ruthenium content due to the increasing dispersity of the noble metal. The negative emission bands of the coating 20%Ru+ 80%Ti proves the occurrence of a segregation phenomenon resulting in a TiO2-enriched surface layer. The results obtained are in agreement with those of former measurements by simultaneous thermogravimetry-differential thermal analysis (TGA-DTA), thermogravimetry combined with mass spectrometry (TGA-MS) and secondary ion mass spectrometry (SIMS).

Original languageEnglish
Pages (from-to)252-257
Number of pages6
JournalSurface Science
Volume335
Issue numberC
DOIs
Publication statusPublished - Jul 20 1995

Fingerprint

mixed oxides
thermogravimetry
Oxides
coatings
Coatings
Thermogravimetric analysis
noble metals
secondary ion mass spectrometry
ruthenium
oxide films
surface layers
thermal analysis
mass spectroscopy
Ruthenium
Raman spectroscopy
titanium
occurrences
Carbon Monoxide
Precious metals
Secondary ion mass spectrometry

Keywords

  • Electrocatalytic thin films
  • Mixed oxide coating
  • Photon absorption spectroscopy
  • Ruthenium
  • Surface segregation
  • Titanium

ASJC Scopus subject areas

  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry

Cite this

Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods. / Mink, J.; Kristóf, J.; De Battisti, A.; Daolio, S.; Németh, Cs.

In: Surface Science, Vol. 335, No. C, 20.07.1995, p. 252-257.

Research output: Contribution to journalArticle

Mink, J. ; Kristóf, J. ; De Battisti, A. ; Daolio, S. ; Németh, Cs. / Investigation on the formation of RuO2-based mixed oxide coatings by spectroscopic methods. In: Surface Science. 1995 ; Vol. 335, No. C. pp. 252-257.
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