Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 368, Issue 1-2, Pages 145-148Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2003.10.279
Keywords
anodic alumina membranes; synthesis; CeO2; nanowire arrays
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Ordered CeO2 nanowire arrays embedded in anodic alumina membranes (AAM) were fabricated by a novel technique, in which anions and cations conversely migrated into the hexagonally ordered nanochannels of the AAM and reacted inside the channels to form one-dimensional nanostructures. The transmission electron microscopy (TEM) images show that CeO2 nanowires are about 60 nm in diameter, which correspond to the pore sizes of the membranes used. The selected-area electron diffraction (SAED) pattern indicates that the nanowires selected are single crystals. The scanning electron microscopy (SEM) images show that the resultant nanowires are abundant and uniform. The X-ray diffraction (XRD) spectra indicate that the CeO2 nanowires are cubic crystalline structure. The X-ray photoelectron spectroscopy (XPS) spectra data demonstrate that stoichiometric CeO2 is formed. (C) 2003 Elsevier B.V. All rights reserved.
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