化工进展2024，Vol.43Issue(3)：1275-1292,18.DOI:10.16085/j.issn.1000-6613.2023-0493
晶种在分子筛合成中的作用研究进展
The role of seed in the synthesis of molecular sieves
摘要
Abstract
Molecular sieves have been widely used as catalyst or adsorbent in petroleum refining and fine chemical industries.The synthetic chemistry of molecular sieve has advanced significantly in recent years,and the role of seed crystal in zeolite synthesis has become a research hotspot.Here the research progress of the role of seed in molecular sieve synthesis is reviewed and the impacts of seed are concluded to five aspects:accelerating crystallization rate,broadening the silica to alumina ratios of product,regulating product morphology,substituting organic templates and other functions.The focus is the role of seed crystal in the formation of molecular sieves with special morphology and the substitution of seed for organic template agent.According to the nucleation and growth mechanisms of molecular sieve,the principles of different effects of seed crystal in the synthesis process were analyzed,and it was revealed that the reduction of the activation energy of molecular sieve nucleation by seed crystal was the basis for its different effects.From the perspective of clean production,it is proposed that the specific structural changes of seed crystal in the process of molecular sieve synthesis and the synthesis of molecular sieve with high performance using seed crystal instead of organic template agent will become the focus of future research.关键词
分子筛/沸石/合成/成核/晶种Key words
molecular sieve/zeolites/synthesis/nucleation/seed crystal分类
化学化工引用本文复制引用
梁燕燕,张军亮,郭云鸦,张燕挺..晶种在分子筛合成中的作用研究进展[J].化工进展,2024,43(3):1275-1292,18.基金项目
山东省自然科学基金(ZR2021QB169) （ZR2021QB169）
东营市科学发展基金(DJ2020006). （DJ2020006）
