PDF(Sci-hub)
Abstract：
Coordination polymer (CP) glasses offer a way to tackle the fabrication challenges encountered by inorganic porous membranes and show great potentials for size-exclusive gas separation. However, their processability and performance still cannot simultaneously meet the requirements for high-performance membrane separation. Herein, we have developed a series of CP glasses (M-P-dmbIm, M=Zn, Cd, Cu, and Mn), which possess low vitrification temperature as well as low viscosity (η) and lave capability above the transition temperatures. The derived glass (ag M-P-dmbIm) membranes show outstanding performances for H2 /CO2 , H2 /N2 , and H2 /CH4 separation, which all far surpass the Robeson upper bound and even rival against the best of the state-of-the-art gas separation membranes. The low viscosities not only allow us to hot-cast or hot-press the CP glasses into thin membranes within 5 min without sacrificing their selectivity and permeability, but also endow the resulted glass membranes with healing ability.
摘要：
配位聚合物（CP）玻璃提供了一种解决无机多孔膜遇到的制造挑战的方法，并显示出尺寸专有的气体分离的巨大潜力。然而,它们的加工性能和性能仍然不能同时满足高性能膜分离的要求。在这里，我们开发了一系列CP眼镜(M-P-dmbIm，M=Zn,Cd,Cu,和Mn)，具有低玻璃化温度以及低粘度（η）和高于转变温度的能力。衍生的玻璃（agM-P-dmbIm）膜对H2/CO2表现出优异的性能，H2/N2,和H2/CH4分离，所有这些都远远超过了罗伯逊的上限，甚至与最先进的气体分离膜相抗衡。低粘度不仅使我们能够在5分钟内将CP玻璃热铸或热压成薄膜，而不会牺牲其选择性和渗透性，而且还赋予了所得玻璃膜愈合能力。
