Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), EPFL-ISIC-Valais, Sion, 1950, Switzerland.
Angew Chem Int Ed Engl. 2016 Mar 14;55(12):4016-20. doi: 10.1002/anie.201600455. Epub 2016 Feb 17.
Metal-free heteroatom-doped carbocatalysts with a high surface area are desirable for catalytic reactions. In this study, we found an efficient strategy to prepare nitrogen, phosphorus, and sulfur co-doped hollow carbon shells (denote as NPS-HCS) with a surface area of 1020 m(2) g(-1). Using a poly(cyclotriphosphazene-co-4,4'-sulfonyldiphenol) (PZS) shell as carbon source and N, P, S-doping source, and the ZIF-67 core as structural template as well as extra N-doping source, NPS-HCS were obtained with a high surface area and superhydrophilicity. All these features render the prepared NPS-HCS a superior metal-free carbocatalyst for the selective oxidation of aromatic alkanes in aqueous solution. This study provides a reliable and facile route to prepare doped carbocatalysts with enhanced catalytic properties.
对于催化反应而言，具有高比表面积的无金属杂原子掺杂碳基催化剂是理想的。在这项研究中，我们发现了一种高效的策略，可制备具有 1020 m(2) g(-1)比表面积的氮、磷和硫共掺杂空心碳壳（记为 NPS-HCS）。使用聚（环三磷腈-共-4,4'-磺酰基二苯酚）（PZS）壳作为碳源和 N、P、S 掺杂源，ZIF-67 核作为结构模板和额外的 N 掺杂源，得到了具有高比表面积和超亲水性的 NPS-HCS。所有这些特性使制备的 NPS-HCS 成为一种用于在水溶液中选择性氧化芳烃烷烃的优异的无金属碳基催化剂。本研究提供了一种可靠且简便的途径来制备具有增强催化性能的掺杂碳基催化剂。
