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High‐Performance Oxygen‐Permeable Membranes with an Asymmetric Structure Using Ba 0.95 La 0.05 FeO 3− δ Perovskite‐Type Oxide
Author(s) -
Watenabe Ken,
Yuasa Masayoshi,
Kida Tetsuya,
Teraoka Yasutake,
Yamazoe Noboru,
Shimanoe Kengo
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200903953
Subject(s) - oxygen permeability , permeation , membrane , oxygen , materials science , oxide , perovskite (structure) , permeability (electromagnetism) , flux (metallurgy) , chemical engineering , porosity , chemistry , organic chemistry , composite material , metallurgy , engineering , biochemistry
High oxygen permeability was achieved using an asymmetric Ba 0.95 La 0.05 FeO 3− δ membrane. In this membrane, oxygen diffuses physically through pores of a porous support and oxygen permeates electrochemically through a dense layer. The oxygen permeation flux of the asymmetric Ba 0.95 La 0.05 FeO 3− δ membrane reached more than 10 cm 3 (STP) min −1 cm −2 from a test gas containing 50% oxygen at 930 °C.