Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (9): 1255-1281.DOI: 10.1016/S1872-2067(19)63381-4

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Coordinatively unsaturated sites in zeolite matrix: Construction and catalysis

Weijie Lia, Lanan Suna, Linjun Xiea, Xin Denga, Naijia Guana,b, Landong Lia,b   

  1. a School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300350, China;
    b Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education, Nankai University, Tianjin 300071, China
  • Received:2019-03-21 Online:2019-09-18 Published:2019-07-06
  • Contact: S1872-2067(19)63381-4
  • Supported by:
    This work was supported by the National Natural Science Fundation of China (21722303, 21421001), the Municipal Natural Science Fund of Tianjin (18JCJQJC47400, 18JCZDJC37400), and 111 Project (B12015, B18030).

Abstract: Zeolites with ordered porous structure of molecular size are widely employed as commercial adsorbents and catalysts. On the other hand, the zeolite matrix is regarded as an ideal scaffold for hosting coordinatively unsaturated sites. Remarkable achievements have been made dealing with the construction, characterization and catalytic applications of coordinatively unsaturated sites in zeolite matrix. Herein, a literature overview of recent progresses on this important topic is presented from the specific view of coordination chemistry. Different strategies to construction coordinatively unsaturated sites in zeolite matrix, in zeolite framework or extraframework positions, are first introduced and their characteristics are compared. Then, spectroscopic techniques to determine the existing states of cation sites and their transformations in zeolite matrix are discussed. In the last section, the catalytic applications of coordinatively unsaturated sites in zeolite matrix for various important chemical transformations are summarized.

Key words: Coordinatively unsaturated sites, Zeolite matrix, Construction, Characterization, Catalysis