Citation: Shan Shao-Chun, Shen Shao-Bo, Huang Min-Ming. Introduction of Vanadium into High-Silica Zeolited by Solid-State ion Exchange[J]. Acta Physico-Chimica Sinica, ;1992, 8(03): 339-344. doi: 10.3866/PKU.WHXB19920311
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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.
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Keywords:
- Solid-state Ion-exchange; V2O5; Zeolite
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