Platinum on 2-aminoethanethiol functionalized MIL-101 as a catalyst for alkene hydrosilylation†,RSC Advances

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Platinum on 2-aminoethanethiol functionalized MIL-101 as a catalyst for alkene hydrosilylation†
RSC Advances ( IF 3.9 ) Pub Date : 2019-06-28 00:00:00 , DOI: 10.1039/c9ra01408j
Zhikai Xie ₁ , Weiwen Chen ₁ , Xiuying Chen ₁ , Xinhua Zhou ₁ , Wenbin Hu ₁ , Xugang Shu ₁

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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^δ+/AET-MIL-101 (AET = 2-aminoethanethiol) with a partially positively charged Pt^δ+ 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 (N₂) 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^δ+ 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^δ+/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.

中文翻译：

铂在 2-氨基乙硫醇官能化的 MIL-101 上作为烯烃氢化硅烷化的催化剂†

氢化硅烷化是均相催化的最大规模应用之一，被广泛用于实现硅产品的商业生产。本文报道了一种双功能多相催化剂 Pt ^{δ +} /AET-MIL-101 (AET = 2-aminoethanethiol)，具有部分带正电的 Pt ^{δ +}电子结构，并通过 AET 和铂前体。使用 X 射线衍射 (XRD)、氮气 (N ₂ ) 吸附-脱附、透射电子显微镜 (TEM)、扫描电子显微镜 (SEM) 和 X 射线光电子能谱 (XPS) 技术对催化剂进行了表征，表明协同作用AET-MIL-101 的 AET-MIL-101 提供了良好的 Pt 分散^{δ +}在通道中，它可以有效地催化氢化硅烷化反应，几乎完全转化并产生独特的加合物。此外，合成的多相催化剂Pt^{δ +} /AET-MIL-101在循环数和原子利用效率方面实现了Pt的合理利用，表明了实现绿色氢化硅烷化产业的潜力。

更新日期：2019-06-28

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