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Synthesis of a range of anion-containing gallium and germanium sodalites

Johnson, G. M., Mead, P. J. and Weller, M. T. (2000) Synthesis of a range of anion-containing gallium and germanium sodalites Microporous and Mesoporous Materials, 38, (2-3), pp. 445-460. (doi:10.1016/S1387-1811(00)00169-4).

Record type: Article


The introduction of gallium and germanium into the sodalite framework has been achieved by hydrothermal and low temperature solution routes for a wide range of anions. This yields materials of general composition Na-8[ABO(4)](6).X-2, where A = Al and Ga, B = Si and Ge, and X includes Cl-, Br-, I-, (ClO3)(-), (BrO3)(-), (HCOO)(-), (MnO4)(-), (SCN)(-) and (SeCN)(-). Lithium and potassium exchanged derivatives of certain sodalites have also been prepared via reaction in nitrate melts. Intra-cage reactions performed on selected samples have permitted the preparation of such species as aluminogermanate sulphur and selenium ultramarines. Products have been characterised by powder X-ray and neutron diffraction, infra-red, Raman and magic angle spinning nuclear magnetic resonance spectroscopy, thermogravimetric analysis and flame photometry.

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Published date: 1 August 2000
Keywords: synthesis, sodalite, gallium, germanium, cation exchange, intra-cage modificationaluminosilicate-sodalites, gallosilicate, nitrite, diffraction, cancrinite, oxidation, zeolite, br


Local EPrints ID: 18871
PURE UUID: 2ecca194-f139-4022-a1f2-e37722bbf67d

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Date deposited: 20 Dec 2005
Last modified: 17 Jul 2017 16:34

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Author: G. M. Johnson
Author: P. J. Mead
Author: M. T. Weller

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