Synthesis of Two-dimensional Microporous Carbonaceous Polymer Nanosheets and Their Application as High-performance CO2 Capture Sorbent

Miao Zhang; Lin Liu; Teng He; Guotao Wu; Ping Chen

doi:10.1002/asia.201600396

Synthesis of Two-dimensional Microporous Carbonaceous Polymer Nanosheets and Their Application as High-performance CO2 Capture Sorbent

Chem Asian J. 2016 Jun 21;11(12):1849-55. doi: 10.1002/asia.201600396. Epub 2016 May 31.

Authors

Miao Zhang^{1

2}, Lin Liu³, Teng He¹, Guotao Wu¹, Ping Chen⁴

Affiliations

¹ 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.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ 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. liulin@dicp.ac.cn.
⁴ 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. pchen@dicp.ac.cn.

PMID: 27124013
DOI: 10.1002/asia.201600396

Abstract

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.

Keywords: 2D carbonaceous polymer nanosheets; carbon dioxide capture; ionothermal method; microporous materials; polymers.