Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (3): 436-491.DOI: 10.1016/S1872-2067(12)60528-2

• Special Column on Progress in Catalysis in China during • Previous Articles     Next Articles

Progress in development and application of solid-state NMR for solid acid catalysis

ZHENG Anmina, HUANG Shing-Jongb, WANG Qianga, ZHANG Hailuc, DENG Fenga, LIU Shang-Bind,e   

  1. a State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China;
    b Departmentof Chemistry, National Taiwan University, Taipei 10617, Taiwan, China;
    c Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu, China;
    d Institute of Atomic and Molecular Sciences, “Academia Sinica”, Taipei 10617, Taiwan, China;
    e Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan, China
  • Received:2012-06-30 Revised:2012-09-10 Online:2013-04-02 Published:2013-04-03
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (20933009, 21073228, 21210005, 21103223, 21173255) and the National Science Council (NSC98-2113-M-001-017-MY3, NSC101-2113-M-001-020-MY3), Taiwan, China.

Abstract:

Solid acid catalysts have been widely used in petrochemical industry and their catalytic activities are normally dictated by their acidities. Unlike conventional acidity characterization techniques such as titration, infrared, or temperature-programmed desorption, detailed acid features of solid acids, such as type, distribution, concentration, and strength of acid sites may be attained by advanced methods involving pertinent probe molecules and state-of-the-art solid-state nuclear magnetic resonance (SSNMR) techniques,i.e. double resonance and two-dimensional correlation spectroscopies. In addition, in situ solid-state NMR method is capable of probing the guest/host properties of the reactant at the active centers of the catalystsas well as the intermediate species formed during conversion. Itprovides direct experimental evidence for exploring the mechanism of catalytic reaction. In this report, the fundamental theory and the recent developments in solid-state NMR are reviewed with specific focus on relevant applications in structure and acidity characterization of solid acid catalysts and catalytic mechanisms.

Key words: Solid-state NMR spectroscopy, Solid acid catalyst, Probe molecule, Acidity, Catalytic reaction mechanism