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Preparation and Characteristic of One-dimensional Magnesium Borate Nanomaterials

Author(s): LI Tian-Bao, LIANG Jian, XU Bing-She, WANG Jin

Journal: Journal of Inorganic Materials
ISSN 1000-324X

Volume: 25;
Issue: 9;
Start page: 947;
Date: 2010;
Original page

Keywords: magnesium borate | nanomaterial | solvothermal method

Single-crystalline magnesium borate nanorods were fabricated by solvothermal method at the supercritical conditions. This reaction condition enabled the formation of magnesium borate with one dimensional nanostructure without the involvement of surfactants. The microstructures of as-synthesized products prepared at different reaction stages were characterized by X-ray diffraction. The results show that Mg2B2O5 structure is obtained through an intermediate transition from Mg(OH)2 to MgBO2(OH), and then from MgBO2(OH) to Mg2B2O5. The morphology of the products at corresponding stages were observed by scanning electron microscope(SEM), showing that the formation process of Mg2B2O5 nanorods was from flake-like to short columnar and then to rod. The result suggests that the formation of Mg2B2O5 nanorods follow a process from nucleation → dissolution → anisotropic growing → recrystallization.
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Tango Jona
Tangokurs Rapperswil-Jona