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A Cobalt‐Free Oxygen‐Permeable Membrane Based on the Perovskite‐Type Oxide Ba 0.5 Sr 0.5 Zn 0.2 Fe 0.8 O 3–δ
Author(s) -
Wang H.,
Tablet C.,
Feldhoff A.,
Caro J.
Publication year - 2005
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.200401608
Subject(s) - perovskite (structure) , materials science , cobalt , oxygen , partial pressure , oxide , methane , partial oxidation , membrane , inorganic chemistry , chemical engineering , metallurgy , chemistry , biochemistry , organic chemistry , engineering
A Zn‐containing perovskite structure of composition Ba 0.5 Sr 0.5 Zn 0.2 Fe 0.8 O 3–δ is proposed as an oxygen‐transport material with good phase stability at low oxygen partial pressures at temperatures up to 950 °C. The material has been successfully tested in a membrane reactor in the partial oxidation of methane to synthesis gas (see Figure).