cheminform abstract: novel cobalt-free oxygen-permeable perovskite-type membrane
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Technology of materialsV 1500 DOI: 10.1002/chin.201032209
Novel Cobalt-Free Oxygen-Permeable Perovskite-Type Membrane. — The new cobalt-free perovskite (Ba0.5Sr0.5)(Fe0.8Cu0.2)O3-δ is synthesized by a sol—gel method and characterized by powder XRD, SEM, TEM, conductivity, and oxygen permeation measurements. The (Ba0.5Sr0.5)(Fe0.8Cu0.2)O3-δ membrane exhibits a very high oxygen permeation and electrical conductivity as compared to known perovskite membranes. The oxygen permeation of the membrane maintains its value for 200 h at 1023 K unlike (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ, whose oxygen flux is reduced by one-half during the same interval. — (EFIMOV*, K.; HALFER, T.; KUHN, A.; HEITJANS, P.; CARO, J.; FELDHOFF, A.; Chem. Mater. 22 (2010) 4, 1540-1544, DOI:10.1021/cm902882s; Inst. Phys. Chem. Elektrochem., Univ. Hannover, D-30167 Hannover, Germany; Eng.) — W. Pewestorf
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ChemInform 2010, 41, issue 32 © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim