Co-SiO Nanocomposite Catalysts for CO -Free Hydrogen Production by Ammonia Decomposition.

High-surface-area Co-SiO nanocomposites were synthesized by a simple two-step procedure with activated carbon as the template. These materials catalyze the decomposition of ammonia to produce CO -free hydrogen. The fresh and used catalysts were characterized by various techniques including X-ray diffraction, N adsorption-desorption, and transmission electron microscopy.