Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (01): 110-113.doi: 10.3866/PKU.WHXB20060122

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Synthesis, Structure and Growth Mechanism of Magnesium Borate Nanobelts

ZHANG Jiang; ZHAO Yan-ming   

  1. School of Physics Science and Technology, South China University of Technology, Guangzhou 510640, P. R. China
  • Received:2005-05-24 Revised:2005-08-20 Published:2006-01-15
  • Contact: ZHANG Jiang E-mail:jonney@scut.edu.cn

Abstract: Magnesium borate nanobelts, a new kind of quasi one-dimensional nanomaterials, has been synthesized by heating mixed powders of crystalline boron and MgO nanoparticles in the presence of H2O at 1100 ℃. The produced white sample was characterized by different techniques, such as the X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and Fourier transform infrared spectroscopy (FT-IR). The results show that the products are single-crystalline Mg3B2O6Mg3B2O6 nanobelts except some attached Mg2B2O5 particles. The widths of the nanobelts are in the range of 100~200 nm and the lengths are up to several ten micrometers. The growth direction of the nanobelts nears to crystalline Mg3B2O6[010] direction. Finally, the growth mechanism for these novel Mg3B2O6 nanobelts and the effect of reactive temperature on the products have been primarily presented.

Key words: Magnesium borate, Single-crystalline, Nanobelts, Growth mechanism