Zhang Miao, Liu Lin, He Teng, Wu Guotao, Chen Ping
Dalian National Laboratory for Clean Energy, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Chem Asian J. 2016 Jun 21;11(12):1849-55. doi: 10.1002/asia.201600396. Epub 2016 May 31.
The synthesis of two-dimensional (2D) polymer nanosheets with a well-defined microporous structure remains challenging in materials science. Here, a new kind of 2D microporous carbonaceous polymer nanosheets was synthesized through polymerization of a very low concentration of 1,4-dicyanobenzene in molten zinc chloride at 400-500 °C. This type of nanosheets has a thickness in the range of 3-20 nm, well-defined microporosity, a high surface area (∼537 m(2) g(-1) ), and a large micropore volume (∼0.45 cm(3) g(-1) ). The microporous carbonaceous polymer nanosheets exhibit superior CO2 sorption capability (8.14 wt % at 298 K and 1 bar) and a relatively high CO2 selectivity toward N2 (25.6). Starting from different aromatic nitrile monomers, a variety of 2D carbonaceous polymer nanosheets can be obtained showing a certain universality of the ionothermal method reported herein.
在材料科学中，合成具有明确微孔结构的二维（2D）聚合物纳米片仍然具有挑战性。在此，通过在400-500°C的熔融氯化锌中聚合极低浓度的1,4-二氰基苯，合成了一种新型的二维微孔碳质聚合物纳米片。这种类型的纳米片厚度在3-20nm范围内，具有明确的微孔结构、高比表面积（约537m² g⁻¹）和大微孔体积（约0.45cm³ g⁻¹）。微孔碳质聚合物纳米片表现出优异的CO₂吸附能力（在298K和1bar下为8.14wt%）以及对N₂相对较高的CO₂选择性（25.6）。从不同的芳族腈单体出发，可以获得多种二维碳质聚合物纳米片，这表明本文报道的离子热法具有一定的通用性。
