Two-dimensional（2 D） materials have attracted increasing attentions recently due to their unique physical and chemical properties. We herein report the synthesis of four chemically stable 2 D covalent organic nanosh...Two-dimensional（2 D） materials have attracted increasing attentions recently due to their unique physical and chemical properties. We herein report the synthesis of four chemically stable 2 D covalent organic nanosheets（CONs） with large lateral sizes（up to 200 mm） and high aspect ratios（〉20 000） at the air-water interface through the Langmuir-Blodgett method. These CONs exhibit good crystallinity proved by high resolution transmission electron microscopy（HRTEM） and selected area electron diffraction（SAED）. In addition, the hydrophobicity of these CONs can be systematically adjusted by the introduction of various functional groups, making them suitable as functional coating and membrane materials.展开更多
基金supported by National University of Singapore No. CENGas R-261-508-001-646)Ministry of Education – Singapore ( 13No. MOE Ac RF Tier 1 R-279-000-472-112)
文摘Two-dimensional（2 D） materials have attracted increasing attentions recently due to their unique physical and chemical properties. We herein report the synthesis of four chemically stable 2 D covalent organic nanosheets（CONs） with large lateral sizes（up to 200 mm） and high aspect ratios（〉20 000） at the air-water interface through the Langmuir-Blodgett method. These CONs exhibit good crystallinity proved by high resolution transmission electron microscopy（HRTEM） and selected area electron diffraction（SAED）. In addition, the hydrophobicity of these CONs can be systematically adjusted by the introduction of various functional groups, making them suitable as functional coating and membrane materials.
