A novel promoting effect of chelating ligand on the dispersion of Ni species over Ni/SBA-15 catalyst for dry reforming of methane

A series of Ni/SBA-15 (AM) catalysts were prepared by chelating ligand assisted impregnation method. The results showed that the chelating ligand played a positive promoting role for CH4 dry reforming with CO2 over Ni/SBA-15. The electron-pair donor atoms and the high viscosity of chelating agent could inhibit the aggregation of nickel species and contribute to the well-dispersed Ni particles with size of