Facile synthesis of LaAlO3 and Eu(II)-doped LaAlO3 powders by a solid-state reaction

Title
Facile synthesis of LaAlO3 and Eu(II)-doped LaAlO3 powders by a solid-state reaction
Author(s)
정우식이민호
Keywords
LOW-TEMPERATURE SYNTHESIS; LANTHANUM MONOALUMINATE POWDERS; COMBUSTION SYNTHESIS; ALUMINATE; COPRECIPITATION; NANOPARTICLES; ROUTE; ACID; PHOTOLUMINESCENCE; NANOCRYSTALS
Issue Date
201505
Publisher
ELSEVIER SCI LTD
Citation
CERAMICS INTERNATIONAL, v.41, no.4, pp.5561 - 5567
Abstract
Lanthanum aluminate (LaAlO3) powder was prepared by a solid-state reaction between lanthanum(III) carbonate fluoride (LaFCO3) and alumina (Al2O3) powders at elevated temperatures, and characterized by powder X-ray diffraction (XRD), Al-27 magic-angle spinning nuclear magnetic resonance spectroscopy, and scanning electron microscopy. The formation temperature (1000 degrees C) of LaAlO3 was much lower than that in other solid-state reactions. The Eu(II)-doped LaAlO3 powder was prepared by calcination of a mixture of Eu(III)-doped LaFCO3 and Al2O3 in a nitrogen atmosphere and characterized by powder XRD, and photoluminescence and X-ray photoelectron spectroscopy. The intensity of blue emission due to Eu(II) ions in the LaAlO3 powder increased with increasing calcination temperature up to 1200 degrees C but decreased with further increases in temperature. The origin of the Eu(II) ions was explained by the thermal decomposition of EuF3. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32523http://dx.doi.org/10.1016/j.ceramint.2014.12.133
ISSN
0272-8842
Appears in Collections:
공과대학 > 화학공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE