Investigation of RuO2-SnO2 thin film formation by thermogravimetry-mass spectrometry and infrared emission spectroscopy

Lourdes Vázquez-Gómez, Erzsébet Horváth, János Kristóf, Achille De Battisti

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The thermal evolution process of RuO2-SnO2/Ti mixed oxide thin films of varying noble metal content has been investigated by thermogravimetry-mass spectrometry and Fourier transform infrared emission spectroscopy. The gel-like films prepared from aqueous solutions of the precursor salts Sn(OH)2(CH3COO)2-xClx and Ru(OH)Cl3 on titanium metal support were heated in an atmosphere containing 20% O2 and 80% Ar up to 873 K. Chlorine evolution takes place in a single stage process between 573 and 773 K, while the decomposition of organic species like various types of carbonyls, carbonates and carboxylates occurs in two main stages between 423 and 773 K. The combustion temperature of the organic species formed decreases with the increase of the ruthenium content, indicating the catalytic effect of the noble metal. The secondary processes can significantly influence the morphology and electrochemical properties of the films when used as anodes in electrochemical processes.

Original languageEnglish
Pages (from-to)1819-1824
Number of pages6
JournalThin Solid Films
Volume515
Issue number4
DOIs
Publication statusPublished - Dec 5 2006

Keywords

  • Infrared Emission Spectroscopy (IRES)
  • Oxides
  • Ruthenium
  • Tin

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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