Chinese Journal of Catalysis ›› 2025, Vol. 79: 9-31.DOI: 10.1016/S1872-2067(25)64828-5

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Water interactions in molecular sieve catalysis: Framework evolution and reaction modulation

Linhai Hea,b,1, Caiyi Loua,b,1, Lu Suna,b, Jing Niua, Shutao Xua,b,*(), Yingxu Weia,b, Zhongmin Liua,b,*()   

  1. aNational Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
    bUniversity of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2025-06-27 Accepted:2025-08-10 Online:2025-12-18 Published:2025-10-27
  • Contact: Shutao Xu, Zhongmin Liu
  • About author:Shutao Xu (Dalian Institute of Chemical Physics, Chinese Academy of Science) received his B.S. degree from Fudan University (P. R. China) in 2004, and PhD from Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) in 2011. Then he joined Prof. Zhongmin Liu’s team at National Engineering Research Center of Lower-Carbon Catalysis Technology, DICP as a research assistant. He became a professor in 2017. His research interests are the developments various of solid-state Nuclear Magnetic Resonance Spectroscopy (ssNMR) methods, including in-situ/operando techniques, 2D ssNMR spectroscopy, Hyperpolarized (HP) 129Xe and Pulse Field Gradient (PFG) NMR, as well as applying these advanced NMR methods to the study of the structure, acidity and reaction mechanism of catalytic materials. He has published more than 100 peer-reviewed papers.
    Zhongmin Liu (Dalian Institute of Chemical Physics, Chinese Academy of Science) is the Director of Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) since 2017. He has long been working with the catalysis research, process development, and technology transfer in energy conversion and utilization, and made significant achievements. Prof. Liu led his team to successfully commercialize two of the most representative industrial processes, methanol to olefins (MTO) and methanol to ethanol (MTE), in 2010 and 2017 respectively, which are important advances in coal to chemicals. He has published more than 430 research papers and got 600 authorized patents or more.
    1Contributed equally to this work.
  • Supported by:
    National Key R&D Program of China(2022YFE0116000);National Natural Science Foundation of China(22241801);National Natural Science Foundation of China(22288101);National Natural Science Foundation of China(22022202);National Natural Science Foundation of China(22032005);National Natural Science Foundation of China(21991090);National Natural Science Foundation of China(21991092);National Natural Science Foundation of China(21991093);Dalian Outstanding Young Scientist Foundation(2021RJ01);Liaoning International Joint Laboratory Project(2024JH2/102100005)

Abstract:

Porous molecular sieve catalysts, including aluminosilicate zeolites and silicoaluminophosphate (SAPO) molecular sieves, have found widespread use in heterogeneous catalysis and are expected to play a key role in advancing carbon neutrality and sustainable development. Given the ubiquitous presence of water during catalyst synthesis, storage, and application, the interactions between water and molecular sieves as well as their consequent effects on frameworks and catalytic reactions have attracted considerable attention. These effects are inherently complex and highly dependent on various factors such as temperature, water phase, and partial pressure. In this review, we provide a comprehensive overview of the current understanding of water-molecular sieve interactions and their roles in catalysis, based on both experimental and theoretical calculation results. Special attention is paid to water-induced reversible and irreversible structural changes in aluminosilicate and SAPO frameworks at the atomic level, underscoring the dynamic and labile nature of these frameworks in water environments. The influence of water on catalytic performance and reaction kinetics in molecular sieve-catalyzed reactions is discussed from two perspectives: (1) its participation in reaction through hydrogen bonding interactions, such as competitive adsorption at active sites, stabilization of ground and transition states, and proton transfer bridge; (2) its role as a direct reactant forming new species via reactions with other guest molecules. Recent advancements in this area provide valuable insights for the rational design and optimization of catalysts for water-involved reactions.

Key words: Water, Molecular sieves, Host-guest interactions, Molecular sieve catalysis, Water-assisted/inhibited catalysis