From Discrete Molecular Cages to a Network of Cages Exhibiting Enhanced CO 2  Adsorption Capacity | Zendy

Zhang Lei | Zendy; Xiang Long | Zendy; Hang Cheng | Zendy; Liu Wenlong | Zendy; Huang Wei | Zendy; Pan Yichang | Zendy

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From Discrete Molecular Cages to a Network of Cages Exhibiting Enhanced CO 2 Adsorption Capacity

Author(s) -

Zhang Lei,

Xiang Long,

Hang Cheng,

Liu Wenlong,

Huang Wei,

Pan Yichang

Publication year - 2017

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201702399

Subject(s) - adsorption , enthalpy , sorption , cage , porosity , imine , bar (unit) , chemical engineering , physisorption , chemistry , materials science , thermodynamics , organic chemistry , catalysis , physics , meteorology , engineering , mathematics , combinatorics

We have adopted the concept of “cage to frameworks” to successfully produce a Na–N connected coordination networked cage Na‐NC1 by using a [3+6] porous imine‐linked organic cage NC1 (Nanjing Cage 1) as the precursor. It is found that Na‐NC1 exhibits hierarchical porosity (inherent permanent voids and interconnected channel) and gas sorption measurements reveal a significantly enhanced CO 2 uptake (1093 cm 3 g −1 at 23 bar and 273 K) than that of NC1 (162 cm 3 g −1 under the same conditions). In addition, Na‐NC1 exhibits very low CO 2 adsorption enthalpy making it a good candidate for porous materials with both high CO 2 storage and low adsorption enthalpy.

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