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Catalytic and Electrical Properties of SOFC Anode Material Based on Lanthan‐Chromite‐Titanate
Author(s) -
Müller R.,
Zosel J.,
Ahlborn K.,
Vashook V.,
Ullmann H.,
Guth U.
Publication year - 2002
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/1521-4052(200206)33:6<335::aid-mawe335>3.0.co;2-o
Subject(s) - chemistry , oxidizing agent , catalysis , cationic polymerization , polymer chemistry , nuclear chemistry , medicinal chemistry , organic chemistry
Series of perovskite‐type compounds La 1−a Ca a Cr b−1 Ti b O 3−δ (a = 0.0–1.0, b = 0.0, 0.2, 0.5, 0.8, 1.0) were synthesized by a ceramic technique in air (final heating 1350°C). All compositions were stable in air and in Ar/1 Pa O 2 at 20–1400°C, and in 5% H 2 /Ar (p H 2 O /p H 2= 0.01) at 850–1000°C. The compounds with a = b change their conductivity type from n‐type at p(O 2 ) < 10 −10 Pa to p‐type in more oxidizing atmosphere. Catalytic activity of compounds concerning the partial oxidation of hydrocarbons depends on cationic and anionic composition.