Issue 6, 1998

Metal diolates: useful precursors for tailor-made oxides prepared at low temperatures

Abstract

Diolates of titanium and heterometallic diolates of the combinations Mg/Si, Mg/Ti, Mg/Zr and Ti/Si were prepared by reacting alcoholates [e.g. Ti(OC2H5)4 , Mg(OCH3)2 ·CH3OH] with α,ω-diols like pentane-1,5-diol. The resulting diolates are probably of polymeric nature and do not form single crystals. Structural information was obtained by infrared spectroscopy, thermal analysis and X-ray absorption spectroscopy at the Mg and Si K-edges. Thermal decomposition of such diolates led to oxides with distinct morphology at comparatively low temperatures (540–800 °C). For the heterometallic diolates the thermal decomposition in most cases led to binary, sometimes metastable oxides. The morphology of the oxides strongly depended on the nature of the precursor.

Article information

Article type
Paper

J. Mater. Chem., 1998,8, 1447-1451

Metal diolates: useful precursors for tailor-made oxides prepared at low temperatures

H. Thoms, M. Epple, M. Froba, J. Wong and A. Reller, J. Mater. Chem., 1998, 8, 1447 DOI: 10.1039/A801263F

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