3 years ago

Platinum Nanoparticles Loaded on Metal–Organic Complexes as New and Recyclable Catalysts for the Hydrogenation of Nitroarenes

Platinum Nanoparticles Loaded on Metal–Organic Complexes as New and Recyclable Catalysts for the Hydrogenation of Nitroarenes
Jifei Feng, Shuiying Gao, Xue Yang, Hui Zhao, Yanning Chen, Rong Cao
A very simple and facile method of synthesizing Pt nanoparticles (NPs) deposited on Pt–bpy metal–organic complexes (bpy = 4,4′-bipyridyl) has been developed. No additional capping agents or solid supports are required. The formation of Pt NPs–bpy composites was largely dependent on the molar ratio of metal to bpy. When the molar ratio of Pt to bpy is more than 1:2, Pt NPs were deposited onto the surface of the formed Pt–bpy complexes. This was demonstrated by transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. When the molar ratio of Pt to bpy is less than or equal to 1:2, Pt NPs are difficult to form. Moreover, the Pt NPs–bpy composites were used as a heterogeneous catalyst toward the hydrogenation reaction of the nitroarenes bearing different steric and electronic groups. The catalyst could be recycled for at least six cycles without catalytic activity loss.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b02857

DOI: 10.1021/acs.iecr.7b02857

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