Nitrogen, Phosphorus, and Sulfur Co-Doped Hollow Carbon Shell as Superior Metal-Free Catalyst for Selective Oxidation of Aromatic Alkanes

• Published in: Angewandte Chemie International Edition Vol. 55; no. 12; pp. 4016 - 4020
• Main Authors: Yang, Shuliang, Peng, Li, Huang, Peipei, Wang, Xiaoshi, Sun, Yongbin, Cao, Changyan, Song, Weiguo
• Format: Journal Article
• Language: English
• Published: WEINHEIM Blackwell Publishing Ltd 14.03.2016; Wiley; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Alkanes; Aqueous solutions; Carbon; Carbon sources; Catalysts; Chemistry; Chemistry, Multidisciplinary; Doping; EGR-1 protein; heterogeneous catalysis; Hydrophilicity; metal-free catalysts; Nitrogen; Oxidation; Phosphorus; Physical Sciences; Science & Technology; selective oxidation; Shells; Sulfur; Surface area; MESOPOROUS CARBON; heterogeneous catalysis; selective oxidation; FREE ELECTROCATALYSTS; ALKYLATION; doping; GRAPHENE; BOND FORMATION; NANOSHEETS; POROUS CARBON; HIGHLY EFFICIENT; OXYGEN REDUCTION; carbon; metal-free catalysts; ORGANIC FRAMEWORK
• ISSN: 1433-7851; 1521-3773
• DOI: 10.1002/anie.201600455

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 m2 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. Highly efficient and selective: A synthetic route was developed to produce nitrogen, phosphorus, and sulfur co‐doped hollow carbon shells which were used as a metal‐free carbocatalyst. The carbocatalyst had a high surface area and showed superior activity in the selective oxidation of aromatic alkanes in aqueous solution.