Abstract
Thorn-like polycrystalline Ca2B2O5·H2O microspheres with nano-sized slices were synthesized using boric acid and calcium hydroxide as reactants by a facile catalyst-free hydrothermal method at low temperature. The products were characterized by means of X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The XRD pattern reveals that the Ca2B2O5·H2O is a monoclinic phase polycrystalline with cell parameters a = 0·6702, b = 0·5419 and c = 0·3558 nm. SEM also reveals that the monoclinic phase polycrystalline are thorn-like microspheres composed of many flakes with an average thickness of <100 nm. Possible reaction and growth mechanism were also discussed.
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ZHAO, G., ZHANG, L., WANG, J. et al. Synthesis of thorn-like Ca2B2O5·H2O by hydrothermal method. Bull Mater Sci 34, 1197–1199 (2011). https://doi.org/10.1007/s12034-011-0171-8
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DOI: https://doi.org/10.1007/s12034-011-0171-8