文献类型：期刊文献

英文题名：Water Intrusion-Extrusion in Metal Azolate Frameworks and Pressure-Induced Supramolecular Isomerism

作者：Fang, Diyi[1];Jiang, Hao[1];Wang, Yifan[1];Liu, Chuanlei[1];Peng, Qilong[1];Chen, Yu[1];Wu, Kongguo[1];Chen, Yuxiang[1];Wu, Qiumin[1,2];Shen, Benxian[1,2];Zhou, Jian[3];Wu, Di[4,5];Sun, Hui[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China;[3]Shanghai Res Inst Petrochem Technol, SINOPEC, Shanghai 201208, Peoples R China;[4]Washington State Univ, Alexandra Navrotsky Inst Expt Thermodynam, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA;[5]Washington State Univ, Mat Sci & Engn, Pullman, WA 99163 USA

年份：2024

卷号：63

期号：19

起止页码：8663

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20241916057512);WOS:【SCI-EXPANDED(收录号:WOS:001225111800001)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant 22178109 and 21878097) and the Natural Science Foundation of Shanghai (Grant 21ZR1417700). D.W. acknowledges the institutional funds from the Gene and Linda Voiland School of Chemical Engineering and Bioengineering, and the Alexandra Navrotsky Institute for Experimental Thermodynamics at Washington State University.

语种：英文

外文关键词：Extrusion - Stereochemistry

摘要：Revealing the pressure-induced structure evolution of porous materials is fundamentally important for the development of a HLS (porous heterogeneous lyophobic system). Herein, a series of metal azolate frameworks (MAFs) were synthesized via regulating template concentrations and applied in the {MAF + water} HLS to unveil structure-property relationships and understand pressure-induced structure changes. The quasi-static mechanical measurements indicate that the MAF-5 and MAF-6 samples exhibit intrusion pressures of 93.53 and 48.69 MPa, intrusion volumes of 0.14 and 0.55 mL/g, and intrusion energies of 22.54 and 27.73 J/g, respectively. After high-pressure water intrusion, the MAF-5/MAF-6 mixed composite synthesized under a template concentration of 0.38 vol % undergoes phase transfer to a new structure of MAF-32, while other samples evolve into the consistent structure of MAF-5. Rietveld refinement confirmed the distinct coordination modes between Zn and 2-ethylimidazolate in MAF-5 and MAF-6, and realized the pressure-induced positional changes of the ethyl group on the imidazole ring. The present study highlights the structural evolution of MAFs in response to high-pressure water intrusion and offers insights into the rational design of HLSs and tuning the topological structures of porous coordination polymers in potential applications.