Polar Ketone-Functionalized Metal–Organic Framework Showing a High CO<sub>2</sub> Adsorption Performance
作者:Genfeng Feng、Yuxin Peng、Wei Liu、Feifan Chang、Yafei Dai、Wei Huang
DOI:10.1021/acs.inorgchem.6b02660
日期:2017.3.6
analysis reveals that the new MOF possesses channels decorated by the carbonyl groups and rhombicuboctahedral cages, with open CuII sites pointing toward the cage center. The framework exhibits exceptionally high CO2 (46.7 wt % at 273 K and 1 bar) and H2 (2.8 wt % at 77 K and 1 bar) uptake. Furthermore, it displays high selectivities of CO2 adsorption over N2 and CH4 at 298 K.
将各种功能结合到多孔金属有机骨架(MOF)中代表了一种提高其气体吸附性能的有效策略。在该工作中,合成了羰基化的四羧酸配体(5,5'-羰基二间苯二甲酸),并成功地形成了基于该配体的具有暴露的金属位点的酮官能化的MOF。结构分析表明,新的MOF具有由羰基和菱形八面体笼装饰的通道,开放的Cu II位点指向笼中心。该框架展现出异常高的CO 2(在273 K和1 bar下为46.7 wt%)和H 2(在77 K和1 bar下为2.8 wt%)吸收。此外,它还具有很高的CO 2选择性在298 K时被N 2和CH 4吸附。