Liquid acid-catalysed fabrication of nanoporous 1,3,5-triazine frameworks with efficient and selective CO2 uptake

Liquid acid-catalysed fabrication of nanoporous 1,3,5-triazine frameworks with efficient and selective CO2 uptake
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液体酸催化制备纳米多孔 1,3,5-三嗪框架,具有高效和选择性的 CO2 吸收

DOI:
10.1039/c3py01471a
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发表时间:
2014
期刊:
影响因子:
4.6
通讯作者:
Pan Chunyue
Pan Chunyue
中科院分区:
化学2区
文献类型:
--
作者:
Xiong Shaohui;Fu Xian;Xiang Lu;Yu Guipeng;Guan Jianguo;Wang Zhonggang;Du Yong;Xiong Xiang;Pan Chunyue

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以2,4,6-三氯-1,3,5-三嗪和四面体结构单元为原料,在甲烷磺酸催化下,通过简单、经济的Friedel-Crafts反应合成了一类新型的基于1,3,5-三嗪单元的纳米多孔有机聚合物(NOP-1-6)。其中,具有高达894 m2 g-1的Brunauer-Emmet-Teller(BET)比表面积和超过0.41 m3 g-1的总体积的NOP-3表现出良好的氢吸附能力(在77 K/1.0巴下高达1.14重量%)和高的二氧化碳吸收(在273 K/1.0巴下高达11.03重量%)。此外,它呈现出有效的CO2吸附选择性(NOP-6,CO2/N2选择性38.7,在273 K/1.0 bar下),展示了在气体吸附和分离中的潜在应用。
New classes of nanoporous organic polymers based on 1,3,5-triazine units (NOP-1–6) were synthesized via a straightforward, methane-sulfonic acid-catalysed, cost-effective Friedel–Crafts reaction of 2,4,6-trichloro-1,3,5-triazine and tetrahedral building blocks. Among them, NOP-3 with a Brunauer–Emmet–Teller (BET) specific surface area up to 894 m2 g−1 and the total volume exceeding 0.41 m3 g−1 exhibits good hydrogen adsorption capacity (up to 1.14 wt% at 77 K/1.0 bar) and high carbon dioxide uptake (up to 11.03 wt% at 273 K/1.0 bar). Furthermore, it presents an effective selectivity for CO2 adsorption (NOP-6, CO2/N2 selectivity 38.7 at 273 K/1.0 bar), demonstrating potential applications in gas adsorption and separation.