Three-dimensionally　ordered　macroporous　(3DOM)　LaMnAli(11)O(19)　and　0.97　wt%　Pd/3DOM　LaMnAli(11)O(19)　samples　with　a　good-quality　3DOM　structure　have　been　prepared　using　the　poly(methyl　methacrylate)(PMMA)-templating　and　polyvinyl　alcohol　(PVA)-protected　reduction　methods,　respectively.　The　Pd　nanoparticles　(NPs)　with　a　size　of　2-5　nm　were　uniformly　dispersed　on　the　macropore　wall　surface　of　3DOM　LaMnAli(11)O(19).　Due　to　the　highest　adsorbed　oxygen　species　concentration　and　the　best　low　temperature　reducibility,　the　0.97　wt%　Pd/3DOM　LaMnAlii　019　sample　showed　the　best　catalytic　activity　for　methane　combustion,　with　the　reaction　temperatures　(T-10%,T-　T-50%　Mu,　and　T-90%)　required　for　achieving　methane　conversions　of　10,　50,　and　90%　being　259,　308,　and　343　degrees　C　at　SV　=　20,000　mL/(g　h),　respectively.　The　0.97　wt%　Pd/3DQM　LaMnAli(11)O(19)　catalyst　was　catalytically　stable,　whereas　the　0.98　wt%　Pd/3DOM　Mn2O3　sample　was　partially　deactivated　after　50　h　of　methane　oxidation.　The　introduction　of　3.0　vol%　H2O　or　2.0　vol%　CO2　to　the　reaction　system　resulted　in　the　reversible　deactivation　of　0.97　wt%　Pd/3DOM　LaMnAlii　019,　but　the　addition　of　100　ppm　SO2　led　to　the　irreversible　deactivation　of　the　catalyst.　It　is　concluded　that　the　good-quality　3DOM　structure,　uniformly　dispersed　Pd　NPs,　high　adsorbed　oxygen　species　concentration,　good　low-temperature　reducibility,　and　strong　interaction　between　Pd　NPs　and　3DOM　LaMnAli(11)O(19)　were　accountable　for　the　good　catalytic　performance　of　0.97　wt%　Pd/3DOM　LaMnAli(11)O(19).　(C)　2017　Elsevier　B.V.　All　rights　reserved.