A facile synthesis of NaNbO3 powders by decomposition of ammonium niobium oxalate with sodium salt at low temperature

A facile synthesis of NaNbO3 powders by decomposition of ammonium niobium oxalate with sodium... A facile synthesis of NaNbO3 powders was performed by solid-state reaction at low temperature. Stoichiometric ammonium niobium oxalate and Na2CO3 were mixed in water and then calcined at different temperatures for various times after drying. A combination of X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy and thermogravimetric (TG) analysis was used to characterize the product and precursor compound. The XRD patterns show that single-phase NaNbO3 powders with high crystallinity can be synthesized at 425 °C for 15 min. The particle size from XRD data is found to be about 40 nm for NaNbO3 powders calcined at 500 °C for 3 h, which is in good agreement with SEM data. The SEM photograph shows that NaNbO3 powders are cuboid-like and well crystallized when calcination at 800 °C for 3 h. The product compositions prepared using other sodium reactants, such as HCOONa and NaNO3, are also discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A facile synthesis of NaNbO3 powders by decomposition of ammonium niobium oxalate with sodium salt at low temperature

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Publisher
Springer Netherlands
Copyright
Copyright © 2010 by Springer Science+Business Media B.V.
Subject
Chemistry; Inorganic Chemistry ; Physical Chemistry ; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-010-0156-z
Publisher site
See Article on Publisher Site

Abstract

A facile synthesis of NaNbO3 powders was performed by solid-state reaction at low temperature. Stoichiometric ammonium niobium oxalate and Na2CO3 were mixed in water and then calcined at different temperatures for various times after drying. A combination of X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy and thermogravimetric (TG) analysis was used to characterize the product and precursor compound. The XRD patterns show that single-phase NaNbO3 powders with high crystallinity can be synthesized at 425 °C for 15 min. The particle size from XRD data is found to be about 40 nm for NaNbO3 powders calcined at 500 °C for 3 h, which is in good agreement with SEM data. The SEM photograph shows that NaNbO3 powders are cuboid-like and well crystallized when calcination at 800 °C for 3 h. The product compositions prepared using other sodium reactants, such as HCOONa and NaNO3, are also discussed.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Aug 17, 2010

References

  • Lead-free piezoceramics
    Saito, Y; Takao, H; Tani, T; Nonoyama, T; Takatori, K; Homma, T; Nagaya, T; Nakamura, M
  • Chemical synthesis of lithium niobate powders (LiNbO3) prepared from water-soluble DL-malic acid complexes
    Camargo, ER; Kakihana, M
  • Mechanochemical synthesis of NaNbO3
    Rojac, T; Kosec, M; Malič, B; Holc, J
  • Studies on the thermal decomposition kinetics and mechanism of ammonium niobium oxalate
    Su, TT; Zhai, YC; Jiang, H; Gong, H
  • Synthesis of MNbO3 nanoparticles (M = Li, Na, K)
    Wohlrab, S; Weiss, M; Du, H; Kaskel, S
  • A novel aqueous solution route to the low-temperature synthesis of SrBi2Nb2O9 by use of water-soluble Bi and Nb complexes
    Asai, T; Camargo, ER; Kakihana, M; Osada, M

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