Deria Pravas, Li Song, Zhang Hongda, Snurr Randall Q, Hupp Joseph T, Farha Omar K
Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Chem Commun (Camb). 2015 Aug 11;51(62):12478-81. doi: 10.1039/c5cc04808g.
CO2 capture is essential for reducing the carbon footprint of coal-fired power plants. Here we show, both experimentally and computationally, a new design strategy for capturing CO2 in nanoporous adsorbents. The approach involves 'complementary organic motifs' (COMs), which have a precise alignment of charge densities that is complementary to the CO2 quadrupole. Two promising COMs were post-synthetically incorporated into a robust metal-organic framework (MOF) material using solvent-assisted ligand incorporation (SALI). We demonstrate that these COM-functionalized MOFs exhibit high capacity and selectivity for CO2 relative to other reported motifs.
二氧化碳捕集对于减少燃煤发电厂的碳足迹至关重要。在此，我们通过实验和计算展示了一种用于在纳米多孔吸附剂中捕集二氧化碳的新设计策略。该方法涉及“互补有机基序”（COM），其电荷密度具有与二氧化碳四极矩互补的精确排列。使用溶剂辅助配体掺入（SALI）将两种有前景的COM后合成掺入到一种坚固的金属有机框架（MOF）材料中。我们证明，相对于其他已报道的基序，这些COM功能化的MOF对二氧化碳表现出高容量和选择性。
