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Article Dans Une Revue Journal of the American Chemical Society Année : 2021

Three-Dimensional Triptycene-Based Covalent Organic Frameworks with ceq or acs Topology

Hui Li
  • Fonction : Auteur
Fengqian Chen
  • Fonction : Auteur
Xinyu Guan
  • Fonction : Auteur
Jiali Li
  • Fonction : Auteur
Cuiyan Li
  • Fonction : Auteur
Bin Tang
Yushan Yan
Shilun Qiu
  • Fonction : Auteur
Qianrong Fang

Résumé

The growth of three-dimensional covalent organic frameworks (3D COFs) with new topologies is still considered as a great challenge due to limited availability of high-connectivity building units. Here we report the design and synthesis of 3D triptycene-based COFs, termed JUC-568 and JUC-569, following the deliberate symmetry-guided design principle. By combining a triangular prism (6-connected) node with a planar triangle (3-connected) or another triangular prism node, the targeted COFs adopt non-interpenetrated ceq or acs topology, respectively. Both materials show permanent porosity and impressive performance in the adsorption of CO2 (∼98 cm3/g at 273 K and 1 bar), CH4 (∼48 cm3/g at 273 K and 1 bar), and especially H2 (up to 274 cm3/g or 2.45 wt % at 77 K and 1 bar), which is highest among porous organic materials reported to date. This research thus provides a promising strategy for diversifying 3D COFs based on complex building blocks and promotes their potential applications in energy storage and environment-related fields.

Domaines

Chimie
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Dates et versions

hal-03418392 , version 1 (07-11-2021)

Identifiants

Citer

Hui Li, Fengqian Chen, Xinyu Guan, Jiali Li, Cuiyan Li, et al.. Three-Dimensional Triptycene-Based Covalent Organic Frameworks with ceq or acs Topology. Journal of the American Chemical Society, inPress, 143 (7), pp.2654-2659. ⟨10.1021/jacs.0c12499⟩. ⟨hal-03418392⟩
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