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Updated: Feb 16, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids
Published on: August 23, 2018
Synthesis and hydrogenation application of Pt-Pd bimetallic nanocatalysts stabilized by macrocycle-modified dendrimer
Zhijun Jin1, Haiyan Xiao1, Wei Zhou1
1Department of Polymer Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China.
Abstract:
Different generations of poly(propylene imine) (G -PPI) terminated with N-containing 15-membered triolefinic macrocycle (G M) (n = 2, 3, 4, 5) were prepared. The bimetallic nanoparticle catalysts G M-(Pt /Pd10- ) (x = 0, 3, 5, 7, 10) were prepared by the synchronous ligand-exchange reaction between G M and the complexes of Pt(PPh3)4 and Pd(PPh3)4. The structure and catalytic properties of G M-(Pt /Pd10- ) were characterized via Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, energy-dispersive spectroscopy and inductively coupled plasma atomic emission spectroscopy. The novel bimetallic Pd-Pt nanoparticle catalysts stabilized by dendrimers (DSNs) present higher catalytic activities for the hydrogenation of dimeric acid (DA) than that of nitrile butadiene rubber (NBR). It can be concluded that bimetallic Pd-Pt DSNs possess alloying and synergistic electronic effects on account of the hydrogenation degree (HD) of DA and NBR. Furthermore, the HD of DA and NBR shows a remarkable decrease with the incremental generations (n) of G M-(Pt3/Pd7) (n = 2, 3, 4, 5).
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