Immobilization of Ultrafine Bimetallic Ni-Pt Nanoparticles Inside the Pores of Metal-Organic Frameworks as Efficient Catalysts for Dehydrogenation of Alkaline Solution of Hydrazine

摘要

We report a facile liquid impregnation approach for immobilization of ultrafine bimetallic Ni-Pt nanoparticles (NPs) inside the pores of MIL- 101. The methods of powder X-ray diffraction, N_2 physisorption, X-ray photoelectron spectroscopy, transmission electron microscopy, and inductively coupled plasma-atomic emission spectroscopy were employed to characterize the NiPt@MIL-101 catalysts and further indicated the as-synthesized Ni-Pt NPs were confined in the pores of MIL-101. These as-synthesized bimetallic NiPt@ MIL-101 NPs exhibit exceedingly high catalytic activity, selectivity, and durability toward hydrogen generation from alkaline solution of hydrazine.