Three-dimensionally　ordered　mesoporous　Cr2O3　(meso-Cr2O3)　and　its　supported　Au,　Pd,　and　Au-Pd　(0.90　wt%　Au/meso-Cr2O3,　1.00　wt%　Pd/meso-Cr2O3,　and　xAu(1)Pd(2)/ineso-Cr2O3　(x　=　0.50-1.95　wt)　catalysts　were　prepared　using　the　KIT-6-templating　and　polyvinyl　alcohol-protected　reduction　methods,　respectively.　Physicochemical　properties　of　the　samples　were　characterized　by　means　of　numerous　techniques,　and　their　catalytic　activities　were　evaluated　for　the　oxidation　of　toluene.　It　is　found　that　the　meso-Cr2O3　with　a　high　surface　area　of　74　m(2)/g　was　rhombohedral　in　crystal　structure　and　the　noble　metal　nanoparticles　(NPs)　with　a　size　of　2.9-3.7　nm　were　uniformly　dispersed　on　the　surface　of　meso-Cr2O3.　The　1.95Au(1)Pd(2)/meso-Cr2O3　sample　performed　the　best:　the　T-10%,　T-50%,　and　T-90%　(temperatures　required　for　achieving　toluene　conversions　of　10,　50,　and　90%)　were　87,145,　and　165　degrees　C　at　a　space　velocity　of　20,000　mL/(g　h),　respectively,　and　the　apparent　activation　energy　was　the　lowest　(31　kJ/mol)　among　all　of　the　samples.　The　effect　of　moisture　on　the　catalytic　activity　of　the　1.95Au(1)Pd(2)/meso-Cr2O3　sample　was　also　examined.　It　is　concluded　that　the　excellent　catalytic　performance　of　1.95Au(1)Pd(2)/meso-Cr2O3　was　associated　with　its　small　Au　Pd　particle　size,　high　adsorbed　oxygen　species　concentration,　good　low　temperature　reducibility,　and　strong　interaction　between　Au　Pd　NPs　and　meso-Cr2O3.　(C)　2016　Elsevier　Inc.　All　rights　reserved.