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2-methylimidazole assisted ultrafast synthesis of carboxylate-based metal–organic framework nano-structures in aqueous medium at room temperature

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Science Bulletin 2019年第15期64卷 1103-1109页

作者： Shaheed Ullah Bilal Akram Hassan Ali Hao Zhang Haozhou Yang Qingda Liu Xun Wang Key Laboratory of Organic Opteoelectronics and Molecular Engineering Department of Chemistry Tsinghua University

Carboxylate-based metal–organic frameworks(CMOFs)have received considerable attentions for their high stability,catalytic activity,and ***,synthesis of CMOFs requires high temperature,pressure,and long reaction ***,we explored the activity of 2-methylimidazole(2-MIM)for ultrafast synthesis of CMOF nanostructures(CMOFNs),in aqueous medium at room temperature and reaction time of 10 *** CMOFNs have been synthesized by using Al3+,Cr3+,Cu2+,Fe3+,In3+,or Cd2+salt and1,4-bezenedicarboxylic acid,or 1,3,5-benzenetricarboxylic *** this technique,the CMOFs with space time yield 181–501 kgcrystal sizes of ca.200–700 nm was obtained.

关键词： Metal-organic framework Carboxylate 2-methylimidazole Room temperature synthesis Nanostructures

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Highly efficient CO_(2) capture using 2-methylimidazole aqueous solution on laboratory and pilot-scale

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Chinese Journal of Chemical Engineering 2024年第3期67卷 148-156页

作者： Kun Li Han Tang Shuangshuang Li Zixuan Huang Bei Liu Chun Deng Changyu Sun Guangjin Chen State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Zhejiang Tiandi Environmental Protection Technology Co. Ltd.Hangzhou 310012China

To date,the primary industrial carbon capture approach is still absorption using aqueous solutions of ***,to pursue a substitute for the amine-based approach to improve the CO_(2) capture efficiency and decrease the energy cost further,we report a new carbon capture approach using a 2-methylimidazole(mIm)aqueous *** properties and sorption behaviors of this approach have been experimentally *** results show that the mIm solution has higher CO_(2) absorption capacity under relatively higher equilibrium pressure(>130 kPa)and lower desorption heat than the methyldiethanolamine solution.91.6%sorption capacity of mIm solution can be recovered at 353.15 K and 80 *** selectivity for CO_(2)/N_(2) and CO_(2)/CH_(4) can reach an exceptional 7609 and 4324,***,the pilot-scale tests were also performed,and the results demonstrate that more than 98%of CO_(2) in the feed gas could be removed and cyclic absorption capacity can reach 1 mol·L^(-1).This work indicates that mIm is an excellent alternative to alkanolamines for carbon capture in the industry.

关键词： CO_(2) capture Absorption 2-methylimidazole Separation Pilot-scale tests

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Crystal Structure, Characterization and Enhanced Solubility of Ibuprofen by 2-Methylimidazolium Salt

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Chinese Journal of Structural Chemistry 2019年第7期38卷 1129-1135页

作者： ZHANG Xian-Rui GAO Lei School of Chemical Engineering and Resource Recycling Wuzhou University

Novel crystalline forms of ibuprofen(IBU) with 2-methylimidazole(2 MI) in a 1:1 molar ratio was synthesized by liquid-assisted grinding technique and characterized by single-crystal X-ray diffraction, infrared spectral(IR), powder X-ray diffraction(PXRD),differential scanning calormetry(DSC) and Hirshfeld surface analysis. The structure of IBU-2 MI salt is assembled via N(1)–H(1)+···O1 and N(2)–H(2)+···O(2) hydrogen bonds to form the zigzag-like 1 D chain structure. The original purpose was to solve the pH-dependent solubility defect of ibuprofen, and the result of pH dependent solubility experiments showed that the IBU-2 MI salt had a better solubility at the wide range of pH 4.00 to 9.18. Furthermore, the solubility of IBU-2 MI salt exhibits a dramatic increase(30-fold) in aqueous mediums.

关键词： ibuprofen 2-methylimidazole solubility salt X-ray diffraction

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Synthesis and Characterization of Imidazole Topological Structure ZIF-67 in Supercritical CO2

Synthesis and Characterization of Imidazole Topological Stru...

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中国化学会·第一届全国二氧化碳资源化利用学术会议

作者： Wenqing Han Dongdong Jia Key Laboratory of Organic Solar Cells and Photochemical Conversion School of Chemistry & Chemical Engineering Tianjin University of technology

The time-consuming and expensive solvothermal and hydrothermal procedures, frequently needed for the typical imidazole topological structure zifs material preparation process, which represent the most important drawba... 详细信息

关键词： Supercritical CO2 ZIF-67 cobalt(Ⅱ) 4-oxopent-2-en-2-olate 2-methylimidazole

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