Inorganic Chemicals Industry ›› 2025, Vol. 57 ›› Issue (10): 1-10.doi: 10.19964/j.issn.1006-4990.2025-0054

• Reviews and Special Topics •     Next Articles

Research progress on synthesis methods and influencing factors of SAPO-34 molecular sieve

HOU Ming(), BAI Ziyu, LIU Ruohan, YIN Chengyang()   

  1. College of Chemistry and Chemical Engineering,Shenyang Normal University,Shenyang 110034,China
  • Received:2025-01-24 Online:2025-10-10 Published:2025-10-27
  • Contact: YIN Chengyang E-mail:houming200204@163.com;ycy2006cc@126.com

Abstract:

The SAPO-34 molecular sieve,owing to its CHA topology,moderate acidity,excellent anti-coking properties,and superior hydrothermal stability,has been widely employed in various catalytic reactions.The synthesis methods of SAPO-34 molecular sieves were introduced briefly.Novel synthesis strategies such as nano-sizing and hierarchical pore structure regulation were introduced in detail.The principle and characteristics of the synthesis methods of nano SAPO-34 molecular sieve and hierarchical porous SAPO-34 molecular sieve were summarized.Subsequently,the factors influencing the synthesis of SAPO-34 molecular sieves were discussed,including precursor composition and ratio,structure-directing agents,seeds and crystallization conditions,all of which collectively affect crystallinity,crystal morphology,and particle size.Furthermore,the practical applications of SAPO-34 molecular sieves in catalytic reactions such as methanol-to-olefins(MTO) and selective catalytic reduction of nitrogen oxides with ammonia(NH3-SCR) were reviewed.Finally,prospects for achieving greener and more efficient synthesis of SAPO-34 molecular sieves were outlined.

Key words: molecular sieve, SAPO-34, synthesis methods, influencing factors

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