Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (03): 339-344.doi: 10.3866/PKU.WHXB19920311

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Introduction of Vanadium into High-Silica Zeolited by Solid-State ion Exchange

Shan Shao-Chun; Shen Shao-Bo; Huang Min-Ming   

  1. Department of Modera Chemistry, University of Cience and Technology of China, Hefei 230026
  • Received:1991-01-28 Revised:1991-07-11 Published:1992-06-15
  • Contact: Shan Shao-Chun

Abstract: Vanadium has been introduced into high-silica zeolites by heating the physical mixture of V_2O_5 and H-Mordenite or H-ZSM-5 in an airflow containing water vapor. XRD, LRS, BIE and FTIR results suggest that ion exchange occurs between protons of zeolite and the (VO)~(3+) formed during preparation. ESR results show these are two different coordination structures for the vanadyl species entered into HM or H-ZSM-5, i.e. The compressed hexacoordinated octahedral and the pentacoordinated with pyramidic symmetry.

Key words: Solid-state Ion-exchange, V2O5, Zeolite