The　performance　of　Ni-based　catalysts　was　studied　on　an　interesting　mixture　of　SiO2　and　MgO　fabricated　via　coprecipitation　(CP)　in　methane　decomposition.　The　supported　Ni　catalysts　on　the　SiO2.MgO　was　synthesized　via　various　preparation　methods,　and　an　effective　method　called　impregnation　was　used　via　EDTA　(EIM(Ni)-CP)　with　different　EDTA/Ni　molar　ratios.　The　analytical　procedures　were　performed,　including　XRD,　BET,　FT-IR,　TG-DTA,　SEM,　H2-TPR,　TPO,　and　Raman.　The　catalysts　depicted　the　BET　ranging　from　26.6　to　212.7　m2　g-　1.　The　EIM(Ni)CP　method　with　ED/Ni　=　1:1　exhibited　high　CH4　conversion,　71%　acquired　during　600　min　at　575　omicron　C.　The　highest　amount　of　conversion　at　the　beginning　and　end　of　the　reaction　did　not　change　concerning　smaller　crystal　size　(7.8　nm),　strengthening　metal-support　interaction　with　a　lower　reduction　degree,　and　more　resistance　toward　sintering.　In　addition,　ordered　carbon　filaments　with　better　crystallinity　were　produced　on　the　surface　of　the　EIM(Ni)-CP　sample.