UV-VIS investigations on Co, Fe and Ni incorporated into sol-gel SiO2-TiO2 matrices

A. Kukovecz, Z. Kónya, D. Mönter, W. Reschetilowski, I. Kiricsi

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Bimetallic silica-titania samples have previously been found to be active in multiwall carbon nanotube synthesis. In this paper we present diffuse reflectance UV-VIS investigations of such materials, in order to find out if catalytic activity can be related to the valence shell co-ordination structure of the sol-gel incorporated transition metals. The key spectral components are identified by decomposition. Spectra prove that calcination and the choice of matrix are both able to change the local surroundings of the Co, Fe and Ni ions.

Original languageEnglish
Pages (from-to)403-407
Number of pages5
JournalJournal of Molecular Structure
Volume563-564
DOIs
Publication statusPublished - May 28 2001

Keywords

  • Decomposition
  • Sol-gel method
  • Transition metals
  • UV-VIS spectroscopy

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

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