Synthesis of Two‐dimensional Microporous Carbonaceous Polymer Nanosheets and Their Application as High‐performance CO2 Capture Sorbent. Issue 12 (31st May 2016)

• Record Type: Journal Article
• Authors: Zhang, Miao; Liu, Lin; He, Teng; Wu, Guotao; Chen, Ping
• Is Part Of: Chemistry, an Asian journal. Volume 11:Issue 12(2016)
• Page Start: 1849
• Page End: 1855
• Publication Date: 2016-05-31
• Subjects: 2D carbonaceous polymer nanosheets -- carbon dioxide capture -- ionothermal method -- microporous materials -- polymers; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201600396
• Languages: English
• ISSNs: 1861-4728

Abstract

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. Abstract : A clean nanosheet : 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, and a large micropore volume. The microporous carbonaceous polymer nanosheets exhibit superior CO2 sorption capability and a relatively high CO2 selectivity toward N2 .