title: Nitrogen, Phosphorus, and Sulfur Co-Doped Hollow Carbon Shell as Superior Metal-Free Catalyst for Selective Oxidation of Aromatic Alkanes.
abstract: 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.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
authors.forename: Shuliang
authors.initials: S
authors.lastname: Yang
authors.affiliation: Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), EPFL-ISIC-Valais, Sion, 1950, Switzerland.
authors.forename: Li
authors.initials: L
authors.lastname: Peng
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
authors.forename: Peipei
authors.initials: P
authors.lastname: Huang
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
authors.forename: Xiaoshi
authors.initials: X
authors.lastname: Wang
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
authors.forename: Yongbin
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China. cycao@iccas.ac.cn.
authors.forename: Changyan
authors.initials: C
authors.lastname: Cao
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China. wsong@iccas.ac.cn.
authors.forename: Weiguo
authors.initials: W
authors.lastname: Song
keywords: carbon; doping; heterogeneous catalysis; metal-free catalysts; selective oxidation