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Issue 2, 1999
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Nanocrystalline LiF via microemulsion systems

Abstract

LiF has been prepared in nanocrystalline form by means of microemulsion-mediated precipitation of NH 4 F and LiOAc. Grain growth during the intermicellar exchange, i.e. Ostwald ripening due to the comparatively high solubility of LiF, was suppressed by a strict control of the reaction time. For short times a flowmixer with a certain tube length was used. The reaction was stopped by coagulation in acetone. On heating, the by-product, NH 4 OAc, transforms into acetamide which can easily be extracted. The resulting nano-LiF was isolated as a powder; it exhibits grain sizes between 25 and 70 nm, depending on the reaction time.

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Article type: Paper
DOI: 10.1039/A807301E
J. Mater. Chem., 1999,9, 493-497

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    Nanocrystalline LiF via microemulsion systems

    M. Roth and R. Hempelmann, J. Mater. Chem., 1999, 9, 493
    DOI: 10.1039/A807301E

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