Parkurst Wendel & Rossi
Porous sintered bodies and solid oxide fuel cells using such porous sintered bodies as air electrodes
 A porous sintered body is composed of a perovskite-type composite oxide, wherein A-site of the composite oxide are occupied by one or more kinds of first metallic elements selected from the group consisting of calcium and strontium, one or more kinds of second metal elements selected from the group consisting of rare earth elements and yttrium excluding lanthanum and cerium, and lanthanum, the above one or more kinds of the first metallic elements amount to 5 to 70 mol % of the A-sites, and manganese is contained in B-sites of the composite oxide. 
NGK Insulators, Ltd.
C H C H B Y B B
C04B H01M C04B H01M B01J Y02E B01J B01J
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Tomonori Kazuyo Shinji Takao Hirotake
Takahashi Mori Kawasaki Soma Yamada