Targeted control over the porosities and functionalities of conjugated microporous polycarbazole networks for CO2-selective capture and H2 storage
Targeted control over the porosities and functionalities of conjugated microporous polycarbazole networks for CO2-selective capture and H2 storage
复制标题
有针对性地控制共轭微孔聚咔唑网络的孔隙率和功能，用于 CO2 选择性捕获和 H-2 存储
DOI：
10.1039/c7py01439b
复制
发表时间：
2017-12-14
影响因子：
4.6
通讯作者：
Thomas, Arne
中科院分区：
文献类型：
--
作者：
Liao, Yaozu;Cheng, Zhonghua;Thomas, Arne
我们报道了一种共轭微孔聚咔唑网络及其吡啶，联吡啶和氰基官能化网络，表现出大的表面积（1126 m（2）g（-1）），CO2吸附的等排热（类似于32 kJ mol（-1）），和CO2吸收能力（14重量%，在1巴和273 K）。IAST计算表明，在室温条件下，官能化的聚咔唑网络具有非常高的CO2对N-2（164）的选择性。这些多孔网络还具有中等的H-2存储容量（1.35重量%，在1巴和77 K）和高的H-2吸附的等排热（10.3 kJ mol（-1））。我们的发现提供了一种新的有针对性的途径来控制微孔聚合物的孔隙率和功能，以实现有效的气体吸收。
We report a conjugated microporous polycarbazole network and its pyridine-, bipyridine-, and cyanofunctionalized networks exhibiting large surface area (1126 m(2) g(-1)), isosteric heat of CO2 adsorption (similar to 32 kJ mol(-1)), and CO2-uptake capacity (14 wt% at 1 bar and 273 K). IAST calculations using singlecomponent- isotherms reveal that the functionalized polycarbazole networks have a very high CO2 selectivity over N-2 (164) under ambient conditions. These porous networks also possess moderate H-2 storage capacity (1.35 wt% at 1 bar and 77 K) and high isosteric heat of H-2 adsorption (10.3 kJ mol(-1)). Our finding provides a new targeted route to control the porosities and functionalities of microporous polymers for efficient gas uptake.