NDLI: Synthesis and characterization of sol–gel derived Ag(Nb,Ta)O$

Content Provider	Springer Nature Link
Author	Cao, Lifeng Li, Lingxia Zhang, Ping Wu, Haitao
Copyright Year	2009
Abstract	Perovskite-type Ag(Nb$_{0.6}$Ta$_{0.4}$)O$_{3}$ nanopowder was prepared by the sol–gel process from the AgNO$_{3}$, Ta$_{2}$O$_{5}$ and Nb$_{2}$O$_{5}$, with help of K$_{2}$CO$_{3}$, avoiding use of strong corrosive acid or expensive niobium ethoxide and tantalum ethoxide. The results suggested that thermal decomposition of the xerogel took place when the xerogel was heated at 450 °C. Well-crystallized single-phased powder was obtained at low temperature about 680 °C. With the heat-treatment temperature increasing (680–1,100 °C), the intensity of the diffraction peaks increased. The crystallite size determined by Scherer formula and the result suggested that higher temperature lead to larger crystallite size. Moreover, the average grain size 30–50 nm was estimated by a field emission scanning electron microscope. The influence of holding time on microstructures indicated that the homogeneous and small grains were obtained at 800 °C for 2–4 h while larger ones for 8–16 h.
Starting Page	251
Ending Page	254
Page Count	4
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	51
Issue Number	2
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2009-04-03
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ag(Nb$_{0.6}$Ta$_{0.4}$)O$_{3}$ Thermal analysis Nanopowder Sol–gel processes Nanotechnology Optical and Electronic Materials Inorganic Chemistry Ceramics, Glass, Composites, Natural Methods
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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