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Electrochemical synthesis and characterization of hydroxyapatite powders

Electrochemical synthesis of hydroxyapatite powders was performed galvanostatically from homogeneous solution of Na 2H 2EDTA·2H 2O, NaH 2PO 4 and CaCl 2 at a concentration relationship Ca/EDTA/PO 4 3− of 0.25/0.25/0.15 M at current densities of 137 and 207 mA cm −2 and pH values of 9.0 and 12.0. The...

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Bibliographic Details
Published in:Materials chemistry and physics 2008-09, Vol.111 (1), p.137-142
Main Authors: Djošić, M.S., Mišković-Stanković, V.B., Milonjić, S., Kačarević-Popović, Z.M., Bibić, N., Stojanović, J.
Format: Article
Language:English
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Summary:Electrochemical synthesis of hydroxyapatite powders was performed galvanostatically from homogeneous solution of Na 2H 2EDTA·2H 2O, NaH 2PO 4 and CaCl 2 at a concentration relationship Ca/EDTA/PO 4 3− of 0.25/0.25/0.15 M at current densities of 137 and 207 mA cm −2 and pH values of 9.0 and 12.0. The hydroxyapatite powders were characterized by X-ray diffraction, size distribution measurements, transmission electron microscopy, scanning electron microscopy and thermogravimetric and differential thermal analysis. The influence of the electrochemical synthesis parameters, e.g. applied current density and pH value, on the phase composition, crystallite size, morphology and thermal characteristics of hydroxyapatite powders were investigated.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2008.03.045