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Issue 5, 1996
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Fabrication of La1 –xSrxCoO3 –δ thin layers on porous supports by a polymeric sol–gel process

Abstract

A polymeric sol–gel process was developed to fabricate porous thin layers of the perovskite-type La0.3Sr0.7CoO3 –δ for membrane applications. A spin-coating technique was used for deposition of the layer on porous α-and γ-Al2O3 supports. Both supported and non-supported membranes were characterized by means of thermal analysis, X-ray powder diffraction, particle size analysis, scanning electron microscopy and permporometry. The main phase formed upon heating in air above 400 °C is cubic perovskite, although traces of SrCO3 and of an unknown phase can be observed up to 800 °C. Above this temperature, strong chemical interaction occurs between the deposited perovskite layer and the support material. The effects of the sintering temperature and the type of the La-precursor on the pore-size distribution were investigated.

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Article information


J. Mater. Chem., 1996,6, 815-819
Article type
Paper

Fabrication of La1 –xSrxCoO3 –δ thin layers on porous supports by a polymeric sol–gel process

C. Chen, H. J. M. Bouwmeester, H. Kruidhof, J. E. ten Elshof and A. J. Burggraaf, J. Mater. Chem., 1996, 6, 815 DOI: 10.1039/JM9960600815

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