The　catalytic　and　structural　properties　of　the　mesoporous　nanocrystalline　10　wt.%　Ni-MeOx　(Me=　Fe,　La,　Zr,　Ce,　Ca)-MgAl2O4　catalysts　were　investigated　in　dry　reforming　of　methane.　The　catalysts　were　synthesized　simultaneously　via　a　simple　and　novel　surfactant-free　self-assembly　sol-gel　method.　The　prepared　samples　with　different　promoters　showed　the　high　surface　area　ranging　from　283.61　to　312.86m(2)/g.　The　characterization　of　prepared　catalysts　was　determined　using　different　BET,　XRD,　SEM,　TPR　and　TPO　analysis.　The　addition　of　Ce　to　Ni/MgAl2O4　dramatically　improved　the　catalytic　performance　and　the　Ce-promoted　catalysts　exhibited　the　highest　CH4　conversion　among　the　promoted　and　unpromoted　catalysts.　Also　Ce　suppressed　the　carbon　deposition　because　CeO2　enhanced　the　Ni　dispersion　and　reactivity　of　carbon　deposits.　The　findings　of　the　study　showed　3　wt.　%　Ce　promoted　catalysts　exhibited　the　best　performance　in　temperature　and　stability　test,　more　than　50%　CH4　with　a　lower　amount　of　deposited　carbon　among　other　powders　in　dry　reforming　reaction.　Also,　no　deactivation　was　observed　for　this　catalyst　at　a　period　of　900　minutes　of　time　on　stream　and　at　the　special　condition　which　despite　high　feed　ratio　CH4/CO2=2　and　the　high　GHSV=24000　mL　h(-1)　g(cat)(-1).　(c)　2021　Published　by　Elsevier　Ltd.