Fabrication of La0.3Sr0.7CoO3 – thin layers on porous supports by a polymeric sol–gel process

Chen, Chunhua and Bouwmeester, Henny J.M. and Kruidhof, Henk and Elshof ten, Johan E. and Burggraaf, Anthonie J. (1996) Fabrication of La0.3Sr0.7CoO3 – thin layers on porous supports by a polymeric sol–gel process. Journal of Materials Chemistry, 6 (5). pp. 815-819. ISSN 0959-9428

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Abstract:	A polymeric sol–gel process was developed to fabricate porous thin layers of the perovskite-type La0.3Sr0.7CoO3 – for membrane applications. A spin-coating technique was used for deposition of the layer on porous -and -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.
Item Type:	Article
Copyright:	© 1996 The Royal Society of Chemistry
Faculty:	Science and Technology (TNW)
Research Group:	Inorganic Membranes (IM) Inorganic Materials Science (IMS)
Link to this item:	http://purl.utwente.nl/publications/58243
Official URL:	http://dx.doi.org/10.1039/JM9960600815
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