Hydrothermal synthesis of compounds in the fresnoite mineral family (Ba{sub 2}TiSi{sub 2}O{sub 8})

Journal Article · Sun May 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.12.024· OSTI ID:21494290

Abbott, Edward E; Mann, Matthew ^[1]

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1. Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, 485 Hunter Labs, Clemson, SC 29634-0973 (United States)

Crystals of Ba{sub 2}TiSi{sub 2}O{sub 8}, Sr{sub 2}TiSi{sub 2}O{sub 8}, and Ba{sub 2}VSi{sub 2}O{sub 8}, all belonging to the fresnoite family were prepared by the hydrothermal method. Attempts to synthesize other members by substitution at the alkaline earth site, transition metal site, and tetrahedral site were not successful, but did lead to the formation of a variety of other mineral phases as well as the incommensurate structure, Ba{sub 2}TiGe{sub 2}O{sub 8}. Structural studies on this compound and analysis of the other known fresnoite phases were performed to elucidate the nature of the incommensurate structure. -- Graphical abstract: Materials crystallizing from the hydrothermal TiO{sub 2}+SiO{sub 2}+Ba(OH){sub 2} system. Display Omitted Research highlights: {yields} A variety of products crystallized from the Ba(OH){sub 2}-TiO{sub 2}-SiO{sub 2} hydrothermal system. {yields} Isolation of several fresnoite derivatives. {yields} Structural study on the incommensurate Ba{sub 2}TiGe{sub 2}O{sub 8} material.

• OSTI ID: 21494290
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 5; Other Information: DOI: 10.1016/j.jssc.2010.12.024; PII: S0022-4596(10)00570-0; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM HYDROXIDES
CRYSTAL GROWTH
HYDROTHERMAL SYNTHESIS
HYDROTHERMAL SYSTEMS
SILICON OXIDES
TITANIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
ENERGY SYSTEMS
GEOTHERMAL SYSTEMS
HYDROGEN COMPOUNDS
HYDROXIDES
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS