固体NMR研究MOFs吸附和分离过程中的主客体相互作用
贺彩艳,肖宇情,李申慧,徐君,邓风

Solid-state NMR Investigation of the Host-guest Interactions in Gas Adsorption and Chemical Separation Using MOFs as Adsorbents
HE Caiyan,XIAO Yuqing,LI Shenhui,XU Jun,DENG Feng
图3 (a) 1.9 bar下,乙烷/乙烯共吸附在ZIF-8、ZIF-90和ZIF-8-90的1H MAS NMR谱;(b) IAST理论预测方法和1H MAS NMR实验计算的ZIF-8、ZIF-90和ZIF-8-90的乙烷选择性;(c) 1.1 bar下,乙烷/乙烯共吸附在ZIF-8中的二维1H-1H T2滤波自旋扩散同核相关NMR谱和F2维切片图;1 bar下,等摩尔的乙烷(d)和乙烯(e)在ZIF-8中的密度分布[51]
Fig. 3 (a) 1H MAS NMR spectra of ethane/ethylene co-adsorbed on ZIF-8, ZIF-90 and ZIF-8-90 at 1.9 bar; (b) Ethane selectivity in ZIF-8, ZIF-90 and ZIF-8-90 determined by IAST predications and 1H MAS NMR experiments; (c) 2D 1H-1H T2-filtered spin diffusion homo-nuclear correlation NMR spectra and extracted F2 slices of ZIF-8 upon adsorption of ethane and ethylene at 1.1 bar; Density distribution contours for equi-molar mixtures of ethane (d) and ethylene (e) on ZIF-8 at 1 bar[51]