Achieving Complete Hydrogen Evolution from N2H4BH3 over Mesoporous TiO2 Immobilized NiPt Alloy Nanoparticles

Mesoporous materials, as the supports in the fabrication of catalyst, are beneficial for the dispersion of the metal active sites in the pores. Herein, highly dispersed Ni-Pt alloy nanoparticles deposited on mesoporous TiO2 was facilely and successfully fabricated via a one-step reduction method towards hydrogen generation from N2H4BH3. Unexpectedly, the optimized Ni0.5Pt0.5/meso-TiO2 exhibits superior catalytic property and 100 % selectivity with a turnover frequency (TOF) value of 77.06 min(-1) in the existence of sodium hydroxide at 323 K. Meanwhile, the catalyst achieves high stability and reusability even after five recycles. This study provides one new way for preparation of mesoporous TiO2 supported metal NPs for hydrogen generation reaction

Automated summary

Highly dispersed Ni-Pt alloy nanoparticles supported on mesoporous TiO2 were successfully fabricated for hydrogen generation catalysis through a one-step reduction method. The optimized Ni0.5Pt0.5/meso-TiO2 exhibited superior catalytic performance and 100% selectivity with high stability in the presence of sodium hydroxide at 323 K. This study provides a new approach for preparing mesoporous TiO2 supported metal nanoparticles for hydrogen generation reactions.