Three-dimensionally　ordered　macroporous　rhombohedral　La0.6Sr0.4MnO3　(3DOM　LSMO)　with　nanovoids　was　prepared　using　polymethyl　methacrylate　(PMMA)　microspheres　as　a　hard　template　and　dimethoxytetraethylene　glycol　(DMOTEG),　ethylene　glycol,　polyethylene　glycol　(PEG400),　L-lysine,　or　triblock　copolymer　(Pluronic　P123)　as　a　surfactant.　Physicochemical　properties　of　the　materials　were　character.　ized　by　a　number　of　analytical　techniques,　and　their　catalytic　activities　for　the　combustion　of　methane　were　evaluated.　It　is　shown　that　the　morphology　of　the　sample　depended　strongly　on　the　nature　of　the　surfactant　added　during　the　fabrication　process.　The　macropore　sizes　and　surface　areas　of　the　3DOM　LSMO　materials　were　165-214　nm　and　32-40　m(2)/g,　respectively.　It　is　found　that　addition　of　appropriate　amounts　of　DMOTEG　and　PEG400　was　beneficial　for　the　generation　of　high-quality　3DOM-structured　La0.6Sr0.4MnO3　(denoted　as　LSMO-DP1,　LSMO-DP3,　LSMO-DP5,　derived　with　a　DMOTEG　/PEG400　ratio　of　0.2,　0.6,　and　1.0,　respectively).　The　LSMO-DP3　catalyst　derived　with　3.0　mL　of　DMOTEG　and　5.0　mL　of　PEG400　possessed　the　highest　oxygen　species　concentration　and　surface　area　and　best　low-temperature　reducibility,　and　hence　exhibited　a　good　catalytic　activity　(T-10%　=　437　degrees　C,　T-50%　=　566　degrees　C,　and　T-90%　=　661　degrees　C　at　GHSV　=　30,000　mL/(g　h))　for　methane　combustion.　The　apparent　activation　energies　of　the　3DOM　LSMO　samples　were　estimated　to　be　56.5-75.2　kJ/mol,　with　the　LSMO-DP3　sample　showing　the　lowest　apparent　activation　energy　(56.6　kJ/mol).　(C)　2013　Elsevier　Inc.　All　rights　reserved.