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    Platinum on 2-aminoethanethiol functionalized MIL-101 as a catalyst for alkene hydrosilylation

    Year: 2019

    Journal: RSC Adv., Volume 9, JUL 1, page 20314–20322

    Authors: Xie, Zhikai; Chen, Weiwen; Chen, Xiuying; Zhou, Xinhua; Hu, Wenbin; Shu, Xugang

    Organizations: National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21476272]; Provincial Department of Agriculture Project of Guangdong [KB1814324, KB1814325]; Science and Technology Planning Project of Guangdong Province of China [2017A050506055]; Graduate Education Innovation Program [KA180582712]

    Hydrosilylation is one of the largest-scale applications for homogeneous catalysis and is widely used to enable the commercial manufacture of silicon products. In this paper, a bifunctional heterogeneous catalyst, Pt delta+/AET-MIL-101 (AET = 2-aminoethanethiol) with a partially positively charged Pt delta+ electronic structure is reported, which was successfully prepared using post-synthesis modification with AET and a platinum precursor. The catalysts were characterized using X-ray diffraction (XRD), nitrogen (N-2) adsorption-desorption, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) techniques which showed that the synergy of AET-MIL-101 provides a good dispersion of Pt delta+ in the channels, which can efficiently catalyze the hydrosilylation reaction with almost complete conversion and produce a unique adduct. In addition, the synthetic heterogeneous catalyst Pt delta+/AET-MIL-101 achieves reasonable use of Pt in terms of number cycles and atomic utilization efficiency, indicating the potential to achieve a green hydrosilylation industry.
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