福建师范大学张章静课题组的最新研究提出了三元苯/环己烯/环己烷混合物在柔性氢键有机框架内的热力学和动力学分离。相关论文发表在2025年12月3日出版的《德国应用化学》杂志上。

在此，研究人员报道了HOF-FJU -112a，一种由自组装π柱构成的柔性HOF材料，具有合适和自适应的一维通道(3.6 × 6.0 Å)，用于Bz、CHE和CHA三元混合物的热力学和动力学分离。具体而言，HOF-FJU-112a既能对Bz/CHA和CHE/CHA进行热力学分离，又能对Bz/CHE进行动力学分离，同时使Bz/CHE/CHA三元混合物完全分离。突破和洗脱实验证实了有效的二元和三元分离，Bz/CHE/CHA混合物在一根单柱内完全分离为三种纯组分（99.9%），突破收率很高。该研究展示了多功能HOF的新设计范例，并肯定了它们在挑战C6烃分离方面的前景。

据介绍，苯（Bz）、环己烯（CHE）和环己烷（CHA）的分离在石化工业中至关重要，但由于它们的沸点和分子动力学大小相似，因此仍然具有很高的挑战性。

附：英文原文

Title: Thermodynamic and Kinetic Separation Within a Flexible Hydrogen Bonded Organic Framework for Ternary Benzene/Cyclohexene/Cyclohexane Mixture

Author: Wuji Wei, Yunbin Li, Furong Yuan, Yixuan Lin, Hongyu Lin, Guanrui Han, Bingxiang Ma, Zhen Yuan, Shengchang Xiang, Banglin Chen, Zhangjing Zhang

Issue&Volume: 2025-12-03

Abstract: The separation of benzene (Bz), cyclohexene (CHE), and cyclohexane (CHA) is crucial in the petrochemical industry but remains highly challenging due to their similar boiling points and molecular kinetic sizes. Herein, we report HOF-FJU-112a, a flexible HOF material constructed from self-assembled π-pillars with suitable and adaptive one-dimensional channels (3.6 × 6.0Å ), for thermodynamic and kinetic separation of Bz, CHE, and CHA ternary mixture. Specifically, HOF-FJU-112a is capable of thermodynamically separating Bz/CHA and CHE/CHA, while kinetically separating Bz/CHE, simultaneously leading to a complete separation of the Bz/CHE/CHA ternary mixture. Breakthrough and elution experiments confirm efficient binary and ternary separation, including complete resolution of Bz/CHE/CHA mixtures into three pure components (99.9%) in one single column, with the outstanding breakthrough yield. This study demonstrates a new design paradigm for multifunctional HOFs and affirms their promise in challenging C6 hydrocarbon separations.

DOI: 10.1002/anie.202519313

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202519313