In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2010, No. 8 ( 2010-03), p. 1289-1294
Abstract:
Submicron crystalline rare‐earth hexaborides (RB 6 ; R = Sm, Eu, Gd, and Tb) have been successfully prepared by a facile one‐step solid‐state reaction of RCl 3 · 6H 2 O, B 2 O 3 , and Mg powder in an autoclave at the relatively low temperature of 500 °C. By controlling the reaction conditions, submicron‐sized cubes (RB 6 ) and rod‐ and needlelike SmB 6 are obtained. The possible growth mechanism of the 1D SmB 6 structures has also been discussed. The XRD patterns of the products show that all of the hexaborides can be indexed to a cubic phase with high crystallinity and high purity. The field‐emission scanning electron microscopy (FESEM) and TEM images display their cube‐, rod‐, and needlelike morphologies. The selected‐area electron diffraction (SAED) patterns reveal the single‐crystalline nature of the products.
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2010:8
DOI:
10.1002/ejic.200901015
Language:
English
Publisher:
Wiley
Publication Date:
2010
detail.hit.zdb_id:
1475009-0
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