Three-dimensionally　ordered　macroporous　(3DOM)　perovskite-type　oxides　EuFeO3　(EFO-3DOM)　and　Eu0.6Sr0.4FeO3　(ESFO-3DOM)　were　prepared　by　the　citric　acid-assisted　polymethyl　methacrylate-templating　method.　The　physicochemical　properties　of　the　materials　were　characterized　by　means　of　numerous　techniques.　Catalytic　activities　of　these　porous　samples　were　evaluated　for　the　combustion　of　toluene.　It　is　shown　that　the　EFO-3DOM　and　ESFO-3DOM　catalysts　were　of　high-quality　3DOM　architecture　and　single-phase　orthorhombic　crystal　structure　with　a　surface　area　of　16-31　m(2)/g.　The　sequence　in　surface　oxygen　species　concentration　and　low-temperature　reducibility　decreased　in　terms　of　ESFO-3DOM　＞　EFO-3DOM　＞　EFO-bulk,　in　good　agreement　with　the　order　in　catalytic　activity.　The　ESFO-3DOM　catalyst　exhibited　the　best　performance,　giving　the　T-10%,　T-50%,　and　T-90%　of　233,　278,　and　305　degrees　C　at　a　space　velocity　of　20,000　mL/(g　h),　respectively.　Apparent　activation　energies　of　the　ESFO-3DOM,　EFO-3DOM,　and　EFO-bulk　catalysts　were　ca.　82,　96,　and　104　kJ/mol,　respectively.　The　excellent　catalytic　activity　of　ESFO-3DOM　might　be　associated　with　its　higher　surface　area　and　surface　oxygen　species　concentration　and　better　low-temperature　reducibility　as　well　as　high-quality　3DOM　structure.　(C)　2012　Elsevier　B.V.　All　rights　reserved.