Covalent Triazine Frameworks Prepared from 1,3,5-Tricyanobenzene

Covalent Triazine Frameworks Prepared from 1,3,5-Tricyanobenzene
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DOI:
10.1021/cm303751n
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发表时间:
2013-05-14
影响因子:
8.6
通讯作者:
Thomas, Arne
Thomas, Arne
中科院分区:
材料科学2区
文献类型:
--
作者:
Katekomol, Phisan;Roeser, Jerome;Thomas, Arne

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以1,3,5-三氰基苯为原料,在熔融氯化锌中进行三聚反应,合成了一种新型的三嗪类共价骨架(CTF-0)。单体/ZnCl 2的比例,反应时间,和温度显着影响这种网络的结构和孔隙率。XRD测量显示,可以形成具有约500 m2·g(-1)的表面积和高CO2吸收的晶体框架。提高反应温度,得到具有2000 m2·g-1的扩大表面积的无定形材料。该材料对CO2环加成反应具有良好的催化活性。
A novel covalent triazine framework (CTF-0) was prepared by trimerization of 1,3,5-tricyanobenzene in molten ZnCl2. The monomer/ZnCl2 ratio, the reaction time, and temperature significantly influence the structure and porosity of such networks. XRD measurements revealed that crystalline frameworks can be formed with surface areas around 500 m(2).g(-1) and high CO2 uptakes. Increasing the reaction temperature yielded an amorphous material with an enlarged surface area of 2000 m(2).g(-1). This material showed good catalytic activity for CO2 cycloaddition.