Tailor-made pore surface engineering in covalent organic frameworks: systematic functionalization for performance screening

Huang, Ning ; Krishna, Rajamani ; Jiang, Donglin (2015) Tailor-made pore surface engineering in covalent organic frameworks: systematic functionalization for performance screening Journal of the American Chemical Society, 137 (22). pp. 7079-7082. ISSN 0002-7863

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jacs.5b04300

Related URL: http://dx.doi.org/10.1021/jacs.5b04300

Abstract

Imine-linked Covalent Organic Frameworks (COFs) were synthesized to bear content-tunable, accessible, and reactive ethynyl groups on the walls of one-dimensional pores. These COFs offer an ideal platform for pore-wall surface engineering aimed at anchoring diverse functional groups ranging from hydrophobic to hydrophilic units and from basic to acidic moieties with controllable loading contents. This approach enables the development of various tailor-made COFs with systematically tuned porosities and functionalities while retaining the crystallinity. We demonstrate that this strategy can be used to efficiently screen for suitable pore structures for use as CO2 adsorbents. The pore-surface-engineered walls exhibit an enhanced affinity for CO2, resulting in COFs that can capture and separate CO2 with high performance.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:111716
Deposited On:26 Sep 2017 12:18
Last Modified:26 Sep 2017 12:18

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