Highly efficient hydrogen generation from hydrazine borane via a MoOx-promoted NiPd nanocatalyst

Hydrazine borane (N 2 H 4 BH 3 ) has been considered as a promising chemical hydrogen storage material in recent years for its high hydrogen content (15.4 wt%), easy preparing, and good stability. Designing highly efficient and selective catalysts for realizing the hydrogen evolution from N 2 H 4 BH 3 is highly attractive but still remains challenging. In this work, NiPd nanoparticles (NPs) modified with MoO x have been readily synthesized via a co-reduction route at room temperature and served as highly efficient catalysts toward hydrogen generation from N 2 H 4 BH 3 in aqueous solution. Compared to the pure Ni 0.6 Pd 0.4 NPs, the obtained Ni 0.6 Pd 0.4 -MoO x catalyst exhibits much higher catalytic performances in dehydrogenation of N 2 H 4 BH 3 at 323 K, providing a total turnover frequency (TOF) value of 405 h −1 and almost 100% hydrogen selectivity. The improved catalytic activity of NiPd-MoO x catalyst may be attributed to the small particles size and increased electron density of NiPd as well as the strong basic sites of NiPd NPs induced by the MoO x dopant . The facile synthesis of high-performance and cost-effective of metal NPs catalysts is of great significance for the development of N 2 H 4 BH 3 as a promising hydrogen storage material.