Cui Xinjiang, Junge Kathrin, Dai Xingchao, Kreyenschulte Carsten, Pohl Marga-Martina, Wohlrab Sebastian, Shi Feng, Brückner Angelika, Beller Matthias
Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein Straße 29a, Rostock, 18059, Germany.
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou, 730000, China.
ACS Cent Sci. 2017 Jun 28;3(6):580-585. doi: 10.1021/acscentsci.7b00105. Epub 2017 May 17.
Catalytic hydrosilylation represents a straightforward and atom-efficient methodology for the creation of C-Si bonds. In general, the application of homogeneous platinum complexes prevails in industry and academia. Herein, we describe the first heterogeneous single atom catalysts (SACs), which are conveniently prepared by decorating alumina nanorods with platinum atoms. The resulting stable material efficiently catalyzes hydrosilylation of industrially relevant olefins with high TON (≈10). A variety of substrates is selectively hydrosilylated including compounds with sensitive reducible and other functional groups (N, B, F, Cl). The single atom based catalyst shows significantly higher activity compared to related Pt nanoparticles.
催化硅氢化反应是一种用于形成碳 - 硅键的直接且原子经济的方法。一般来说，均相铂配合物在工业和学术界的应用较为普遍。在此，我们描述了第一种非均相单原子催化剂（SACs），它是通过用铂原子修饰氧化铝纳米棒方便地制备而成。所得的稳定材料能高效催化与工业相关的烯烃的硅氢化反应，具有较高的TON（约为10）。包括具有敏感可还原基团和其他官能团（N、B、F、Cl）的化合物在内的多种底物都能被选择性地硅氢化。与相关的铂纳米颗粒相比，这种基于单原子的催化剂表现出显著更高的活性。
