Amorphous NiCoPt/Ce<sub>2</sub>O<sub>3</sub> Nanoparticles as Highly Efficient Catalyst for Hydrogen Generation from Hydrous Hydrazine

Hydrous hydrazine is a promising hydrogen carrier material because of its high content of hydrogen (8.0 wt.%) and easy recharging as a liquid. Amorphous Ni 8.1 Co 1.0 Pt 0.9 /Ce 2 O 3 nanoparticles with low precious-metal content were synthesized by a facile co-reduction method at room temperature under ambient atmosphere. The increased degree of amorphization was attributed to the introduction of Ce 2 O 3 . The resultant Ni 8.1 Co 1.0 Pt 0.9 /Ce 2 O 3 nanocomposite was employed as an efficient nanocatalyst towards the decomposition of hydrous hydrazine to H 2 , and exhibited excellent catalytic activity and 100% H 2 selectivity. Turnover frequency (TOF) value catalyzed by amorphous Ni 8.1 Co 1.0 Pt 0.9 /Ce 2 O 3 is 93.75 h -1 , which is much higher than Ni 8.1 Co 1.0 Pt 0.9 (4.39 h -1 ) at 298 K. The development of the improved catalytic performance and low-cost catalyst with amorphous structure is believed to strongly promote the practical application of hydrous hydrazine as a hydrogen storage material.