碱处理方法合成多级孔分子筛的进展与挑战
收稿日期: 2022-09-27
网络出版日期: 2023-06-14
基金资助
洁净能源创新研究院中海油联合研发中心2020年度重点科技项目;大连市科技创新基金项目(2020JJ25CY007)
Progress and challenges of alkaline treatment for synthesis of hierarchical zeolites
Received date: 2022-09-27
Online published: 2023-06-14
分子筛是在能源与化工产业中发挥着广泛作用的基础性功能材料，其微孔尺度的孔道结构在赋予其独特性质的同时也限制了其潜力的充分发挥。多级孔分子筛兼具微孔-介孔结构既具有良好的水热稳定性和强酸性，也具备良好的可接触性与扩散性，因其综合了微孔分子筛和介孔材料的优点而得到广泛的研究。由于以碱性介质刻蚀处理合成多级孔分子筛的方法操作简单、成本较低，因而具有工业应用的优势。通过对多级孔分子筛合成方法进行概述，结合国内外研究进展，详细论述了碱处理方法的发展进程、碱处理过程中微结构尺度的机理研究进展以及碱处理方法策略上的拓展，结合研究现状，分析了碱处理研究与应用上所面临的挑战，最后对碱处理的发展进行总结与展望。
洪美花 , 郭子峰 , 刘冠锋 , 臧甲忠 , 杨科玉 , 虞永华 , 张大治 , 黄声骏 . 碱处理方法合成多级孔分子筛的进展与挑战[J]. 无机盐工业, 2023 , 55(6) : 36 -42 . DOI: 10.19964/j.issn.1006-4990.2022-000
Zeolites play essential and wide roles in chemical and energy industries.The microporous zeolites are gifted with versatile unique capabilities owing to their well-defined micropores and channel structure，which however impose limitations on the utilization of their full potentials.The hierarchical zeolites，bearing microporosity and mesoporosity，not only hold good intrinsic hydrothermal stability and strong acidity，but also acquire the good accessibility and diffusion capability.Therefore，hierarchical zeolites receive extensive investigations owing to such combination of microporous zeolites and mesoporous materials.The alkaline treatment or etching treatment in alkaline media is the exemplary method for synthesis of hierarchical zeolites，due to its simplicity in operations and cost-efficient in large-scale applications.By summarizing the synthesis methods of hierarchical zeolites and combining with the research progress at home and abroad，the development process of alkali treatment methods，the mechanism research progress of microstructure scale in alkali treatment process，and the expansion of alkali treatment methods and strategies were discussed in detail.Based on the current research status，the challenges faced in alkali treatment research and application were analyzed.Finally，the development of alkali treatment was summarized and prospected.
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