A series of Ni/SBA-15 catalysts with Ni contents ranging from 5 wt%to 15 wt%.as well as another series of 10%Ni/MgO/SBA-15 catalysts.in which the range of the M
Three Bi-doped vanadyl pyrophosphate catalysts were prepared via dihydrate route(VPD method),which consisted of different preparation methods including mechanos