Poly(N-vinyl-2-pyrrolidone) Stabilized Nanoclusters as Highly Efficient and Reusable Catalyst for the Dehydrogenation of Dimethly Ammonia-Borane

Abstract

Addressed herein, we report a highly efficient and facile synthesis of palladium, nickel nanoparticles supported on poly(N-vinyl-2-pyrrolidone) (PdNi@PVP NPs) for the dehydrogenation of DMAB. PdNi@PVP nanoclusters have been synthesized from the reduction of precursors of metals (Pd and Ni) by the microwave assistance method at room temperature with an average particle size of 3.05 +/- 0.38 nm. This newly produced monodisperse PdNi@PVP nanoclusters exhibits high durability, reusability, and catalytic performance even after the fourth cycle of dehydrogenation of DMAB reactions. On the other hand, the structure morphology and properties of the nanoclusters were characterized using different analytical methods such as UV-Vis, XPS, XRD, TEM, and the HR-TEM techniques. Besides, the PdNi@PVP NPs catalyst showed good catalytic effectiveness with a high turnover frequency of 561.0 h(-1) and low Ea value of 37.11 +/- 2 kJ mol(-1) for DMAB dehydrocoupling in ambient conditions.