Rhombohedrally　crystallized　three-dimensionally　ordered　macroporous　(3DOM)　LaCoO3　and　its　supported　Au　(xAu/300M　LaCoO3,　x　=　0-7.63　wt%)　catalysts　were　prepared　using　the　polymethyl　methacrylate-templating　and　polyvinyl　alcohol-protected　reduction　methods,　respectively.　Physicochemical　properties　of　the　materials　were　characterized　by　means　of　numerous　analytical　techniques,　and　their　catalytic　activities　were　evaluated　for　the　oxidation　of　toluene　and　CO.　It　is　shown　that　the　xAu/3DOM　LaCoO3　samples　displayed　a　3DOM　architecture　and　a　high　surface　area　of　24-29　m(2)/g.　The　7.63Au/3DOM　LaCoO3　sample　exhibited　the　highest　adsorbed　oxygen　species　concentration　and　the　best　low-temperature　reducibility,　and　hence　the　best　catalytic　performance.　Over　7.63Au/3DOM　LaCoO3,　the　T-10%,　T-50%,　and　T-90%　(corresponding　to　the　temperatures　required　for　achieving　a　reactant　conversion　of　10%,　50%,　and　90%)　were　136,　188,　and　202　degrees　C　for　toluene　oxidation　at　space　velocity　(SV)　=　20,000　mL/(g　h),　and　-61,　-6,　and　42　degrees　C　for　CO　oxidation　at　SV　=　10,000　mL/(g　h),　respectively.　Over　xAu/3DOM　LaCoO3,　the　apparent　activation　energies　were　31.4-37.4　kJ/mol　for　toluene　oxidation　and　16.6-19.4　kJ/mol　for　CO　oxidation.　We　believe　that　the　high　oxygen　adspecies　concentration,　good　low-temperature　reducibility,　and　strong　interaction　between　Au　and　3DOM　LaCoO3　might　account　for　the　excellent　catalytic　performance　of　7.63Au/3DOM　LaCoO3.　(C)　2013　Elsevier　B.V.　All　rights　reserved.