TY - JOUR
T1 - Fabrication of La1-xSrxCoO3–δ thin layers on porous supports by a polymeric sol–gel process
AU - Chen, Chunhua
AU - Bouwmeester, Henny J.M.
AU - Kruidhof, Henk
AU - ten Elshof, Johan E.
AU - Burggraaf, Anthony J.
PY - 1996
Y1 - 1996
N2 - 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.
AB - 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.
KW - IR-58243
U2 - 10.1039/JM9960600815
DO - 10.1039/JM9960600815
M3 - Article
SN - 0959-9428
VL - 6
SP - 815
EP - 819
JO - Journal of materials chemistry
JF - Journal of materials chemistry
IS - 5
ER -