Preparation of Supported Ni Catalysts by the Solid Phase Crystallization Method from Hydrotalcite for Hydrogen Production

摘要

The Supported Ni catalyst was prepared by the solid phase crystallization (spc) method starting from Mg-Al hydrotalcite as the precursor. The Egg-shell type Supported Ni catalyst was also successfully prepared by applying the spc-method on the surface layer of the Mg-Al mixed oxide prepared from Mg-Al hydrotalcite. These Supported Ni catalysts showed high and stable activity even at highs pace velocity in the steam reforming of CH_4. We conclude that the high and stable activity is due to the stable and highly dispersed Ni metal particles.