The　experimental　results　indicate　that　among　the　tested　catalysts,　NiO/SiO2　promoted　with　CuO　givethe　highest　hydrogen　yield.　In　addition,　the　examination　of　the　most　suitable　catalyst　support,　includingAl2O3,　CeO2,　La2O3,　SiO2,　and　TiO2,　shows　that　the　decomposition　of　methane　over　NiO-CuO　favorsSiO2　support.　Furthermore,　the　optimum　ratio　of　NiO　to　CuO　on　SiO2　support　for　methane　decompositionwas　determined.　The　experimental　results　show　that　the　optimum　weight　ratio　of　NiO　to　CuO　fell　at　8:2(w/w)　since　the　highest　yield　of　hydrogen　was　obtained　over　this　catalyst.　Service