Three-dimensionally　ordered　macroporous　CoCr2O4　(3DOM　CoCr2O4)　and　its　supported　Au-Pd　alloy　(xAuPd(y)/3DOM　CoCr2O4;　x　=　0.98　and　1.93　wt%;　Pd/Au　molar　ratio　(y)　=　1.93-1.96)　nanocatalysts　were　prepared　using　the　polymethyl　methacrylate-templating　and　polyvinyl　alcohol-protected　reduction　methods,　respectively.　Physicochemical　properties　of　the　samples　were　characterized　by　means　of　a　number　of　techniques,　and　their　catalytic　activities　were　evaluated　for　methane　combustion.　The　3DOM　CoCr2O4　and　xAuPdy/3DOM　CoCr2O4　samples　possessed　a　high-quality　3DOM　structure　and　a　surface　area　of　33-36　m(2)/g.　The　Au-Pd　alloy　nanoparticles　(NPs)　with　an　average　size　of　3.3　nm　were　uniformly　dispersed　on　the　surface　of　the　samples.　The　1.93AuPd(1.95)/3DOM　CoCr2O4　sample　showed　the　best　catalytic　performance:　the　T-10%,　T-50%,　and　T-90%　(temperatures　required　for　achieving　methane　conversion　of　10,　50,　and　90%,　respectively)　were　305,　353,　and　394　degrees　C　at　a　space　velocity　(SV)　of　20,000　mL/(gh).　The　effects　of　SV,　water　vapor,　and　sulfur　dioxide　on　the　catalytic　activity　of　the　1.93AuPd(1.95)/3DOM　CoCr2O4　sample　were　also　examined.　It　is　concluded　that　the　excellent　catalytic　performance　of　1.93AuPd(1.95)/3DOM　CoCr2O4　was　associated　with　the　higher　surface　area　and　adsorbed　oxygen　species　concentration,　better　low-temperature　reducibility,　and　strong　interaction　between　Au-Pd　alloy　NPs　and　3DOM　CoCr2O4.　(C)　2016　Elsevier　B.V.　All　rights　reserved.