Articles
  • A simple microwave-assisted hydrothermal synthesis of lanthanum hydroxide nanowires with a high aspect ratio
  • Oranuch Yayapaoa, Somchai Thongtema,*, Anukorn Phuruangratb,* and Titipun Thongtemc
  • a Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand b Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand c Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Abstract
Uniform La(OH)3 nanowires (NWs) with a high aspect ratio of more than 200 have been successfully synthesized by a simple microwave-assisted hydrothermal (MH) process. Comparing to a conventional hydrothermal (CH) one, the La (OH)3 powders obtained are nanorods in shape with an aspect ratio below 100 and required higher temperature and longer time than the MH. X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses revealed that MH-La(OH)3 NWs were hexagonal structure with 5μm long and 15-25 nm diameter. A formation mechanism of La(OH)3 NWs was proposed and discussed in this research.

Keywords: Lanthanum hydroxide, Nanowires, Microwave-hydrothermal method.

This Article

  • 2012; 13(4): 466-469

    Published on Aug 31, 2012