With ordered and periodic network structures, adjustable pore sizes and high chemical stability, covalent organic frameworks (COFs) have drawn much attention for the fabrication of superior separation membranes. However, it is challenging to prepare COF membranes with a molecular sieving property for gas separation due to their relatively large pore size. In this work, we develop the MOF‐in‐COF concept for vacuum‐assisted synthesis of metal‐organic framework (MOF) ZIF‐8 inside the pores of TB‐COF formed from trihydroxy‐benzene‐tricarbaldehyde (T) and diamino‐biphenyl‐disulfonic acid (B), thus constructing a novel ZIF‐8@TB‐COF membrane. Attributing to the formation of a well‐defined one‐dimensional (1D) nanoscale transport channel, the ZIF‐8@TB‐COF membrane displays a high hydrogen permselectivity. At 100 °C and 200 kPa, the mixture separation factors of H2/CO2, H2/CH4 and H2/C3H8 are 21.9, 63.1 and 134.4, respectively, which are much higher than those of the pristine TB‐COF membrane due to the precise size sieving channels brought about by the incorporated MOF. The synthesis of ZIF‐67@TB‐COF membrane demonstrates the versatility of the synthesis strategy.

Siqi Li

Zheng Wan

Chunxin Jin

Hao Jinlin

Yanhong Li

Xiaofang Chen

Jürgen Caro

Aisheng Huang

Angewandte Chemie International Edition

德国化学会期刊《ANGEWANDTE CHEMIE》以12.257（2018）的优秀影响因子在一般化学期刊中保持领先地位。它每周以高度优化、易于阅读的格式出现；几乎每天都有新文章出现在网上。它成立于 1887 年，是当今世界上最重要的化学期刊之一（见时间轴），其影响因子高于同类期刊。此外，它是该领域唯一提供评论类型的刺激混合的期刊文章、亮点、通讯和研究文章每周。这些评论总结了化学所有分支领域最近研究的重要成果，指出了未解决的问题，并讨论了可能的发展。亮点提供了对当前化学研究趋势的简明评估。通讯和研究文章经过严格挑选，并报告最新的研究成果，这使得该杂志对于想要保持消息灵通的化学家来说是不可或缺的。 ANGEWANDTE CHEMIE 还定期发表诺贝尔化学及相关领域的讲座。

Angewandte Chemie - International Edition is an important chemistry journal published by the German Chemical Society, established in 1887. With an outstanding impact factor of 12.257 in 2018, it ranks among the top general chemistry journals. The journal is published weekly, featuring highly optimized and easy-to-read content, with new articles appearing online almost daily. It is the only mixed-type journal in the field that offers reviews, highlights, communications, and research articles. The review articles summarize significant recent research findings across all branches of chemistry, identify unresolved issues, and discuss potential developments. The highlights provide a concise assessment of current trends in chemical research. Communications and research articles are rigorously selected to report the latest research results, making the journal an indispensable resource for chemists seeking to stay informed. Additionally, Angewandte Chemie regularly publishes lectures related to the Nobel Prize in Chemistry and other relevant fields.

《Angewandte Chemie - International Edition》是德国化学会出版的一本重要化学期刊，成立于1887年。该期刊以其卓越的影响因子（2018年为12.257）在一般化学期刊中名列前茅。期刊每周发布，内容经过精心优化，易于阅读，几乎每天都有新文章在线发布。它是该领域唯一提供评论、亮点、通讯和研究文章的混合型期刊，评论文章总结了化学各个分支领域的最新研究成果，指出未解决的问题，并探讨未来的发展方向。亮点文章则对当前化学研究趋势进行简明评估。通讯和研究文章经过严格筛选，报告最新的研究成果，使得该期刊成为化学家获取最新信息的重要资源。此外，《Angewandte Chemie》还定期发表诺贝尔化学奖及相关领域的讲座。

Category	Quartile
化学	1
化学, 化学综合	1

Vacuum‐Assisted Confined Growth of MOF@COF Composite Membranes with Enhanced Hydrogen Permselectivity

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Category	Quartile
CHEMISTRY, MULTIDISCIPLINARY	1