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In situgrowth of LiFePO4nanorod arrays under hydrothermal condition

Authors
Journal
Solid State Sciences
1293-2558
Publisher
Elsevier
Publication Date
Volume
12
Issue
5
Identifiers
DOI: 10.1016/j.solidstatesciences.2010.02.017
Keywords
  • Lifepo4
  • Nanorod Arrays
  • In Situ
  • Hydrothermal
  • Anodized Alumina Oxides
Disciplines
  • Chemistry
  • Earth Science
  • Geography
  • Mathematics

Abstract

Abstract A novel in situ combinatorial method has been developed to fabricate LiFePO 4 nanorod arrays, during which anodized alumina oxide (AAO) was employed as the template and ethylene glycol/water medium is used to ensure mass transportation rates of different chemicals to match each other. The samples were then characterized by X-ray diffractometer (XRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), and energy dispersive X-ray spectroscopy (EDX). After being hydrothermally processed at 160 °C, the highly-crystallized LiFePO 4 arrays were directly obtained, which are composed of single crystal nanorods with a diameter of 200 nm and a length of 3 μm. The reported synthesis is simple, mild and energy-efficient. A noteworthy advantage over conventional sol–gel–template methods is the elimination of high-temperature annealing.

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