Figure 1. (a) Challenges in scalable fabrication of robust high-valent cluster-based MOF membranes via IP. (b) The schematic illustration of the roll-to-roll continuous processing of PMIP-Zr-fum-MOF membrane on the commercial polymer supports at room temperature via PMIP strategy (note that the scheme merely depicts the entire strategy, and pre-deprotonation of the ligand is not involved in the fabrication of PMIP-Zr-fum-MOF). (c) Five high-valent cluster-based MOF structures with varied monomers were processed into polycrystalline membranes via the PMIP strategy with the revised processes according to different structures. 由此，本文作者设计了PMIP，以制备包括五种具有不同孔径的代表性结构在内的一系列高价簇基MOF膜（图1）。预处理后的单体，例如预先构建的金属簇和预先去质子化的羧酸配体，经过根据不同的框架结构调整的IP过程，在各种基底上交联成连续且薄的膜。PMIP方法能够在室温下，通过辊对辊工艺，在商业化聚合物基底上大规模、连续地制造稳定的高价簇基MOF膜(图1)。这一过程不仅原材料和时间成本较低，而且母液能够实现回收再利用，这与大多数已报道的方法有所不同。辊对辊制得的大面积，PMIP-Zr-fum-MOF膜在H2/CH4分离方面表现出高出商业聚合物膜一个数量级的渗透率和高三倍的选择性，超越了其他类似材料和聚合物膜的上限，这得益于其纳米级厚度和有序孔结构（图2a）。同时，静态水稳定性实验和17天Na2SO4截留实验也对其水稳定性进行验证(图2d-2f)。PMIP方法的提出对高价簇基MOF膜的规模化制备具有重要意义。
Figure 2. (a) H2/CH4 and (b) H2/CO2 separation performance of the PMIP-Zr-fum-MOF membranes with reported values of other membranes in the literature. (c) Long-term stability test of PMIP-Zr-fum-MOF membrane for H2/CH4 separation. SEM images and XRD curves of PMIP-Zr-fum-MOF membrane (d) and IP-synthesized ZIF-8 membranes (e) before and after immersion in DI water for 14 days. (f) Long-term stability test of PMIP-Zr-fum-MOF membrane for NaSO4 rejection in aqueous solutions. 原文（扫描或长按二维码，识别后直达原文页面）：Preprocessed Monomer Interfacial Polymerization for Scalable Fabrication of High-Valent Cluster-Based Metal–Organic Framework MembranesYang Feng, Zixi Kang*, Zhikun Wang, Zhanning Liu, Q. Jason Niu, Weidong Fan, Lu Qiao, Jia Pang, Hu Chang, Xiaolei Cui, Lili Fan, Hailing Guo, Rongming Wang, Dan Zhao*, Daofeng Sun*J. Am. Chem. Soc. 2024, DOI: 10.1021/jacs.4c10241
