Paper Titles
The Activity of Iron-Containing Zeolitic Materials for the Catalytic Oxidation in Aqueous Solutions
p.213
Structural Investigation of Ba2+ and Sr2+ Diphyllosilicates Doped with Yb3+ Ions
p.219
Comparison between Different LiFePO4 Synthesis Routes
p.225
Rietveld Refinement of Crystal Phases (Ca1-xLax)MnO3 with Perovskite-Type Structure
p.231
Synthesis of Pure and Doped LaMnO3 Powders from Citrate Precursors
p.237
Raman Spectra of Bismuth Titanate Ceramics
p.243
Dielectric and Ferroelectric Properties of BaTi1-xSnxO3 Multilayered Ceramics
p.249
Low-Temperature Synthetic Route for Boron Carbide Powder from Boric Acid-Citric Acid Gel Precursor
p.255
Fabrication of SiC by Carbothermal-Reduction Reactions of Sepiolite
p.261

Synthesis of Pure and Doped LaMnO3 Powders from Citrate Precursors

Article Preview

Abstract:

In this work pure and doped LMO were prepared using modified Pechini method from lanthanum and manganese citrates. Lanthanum citrate was prepared starting from La2O3, while manganese citrate was prepared from Mn(NO3)2. Valence state of the manganese was controlled by adjusting pH value of the solution and confirmed by EPR and UV/VIS analysis. Thermal treatment conditions for preparation of LMO powders were determined from TG/DTA of dried precursors. XRD results confirmed that pure perovskite phase was successfully prepared in single LMO and Cadoped LMO. SEM and measurements of specific surface area of the powders showed the existence of large agglomerates consisting of submicronic primary particles.

You might also be interested in these eBooks
Research Trends in Contemporary Materials Science View Preview

Info:

Periodical:

Materials Science Forum (Volume 555)

Pages:

237-242

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.555.237

Citation:

Cite this paper

Online since:

September 2007

Authors:

Katarina Djuriš, G. Branković, Z. Branković, Slavko Bernik, M. Počuča, D. Poleti, B. Antić

Keywords:

Lanthanum Manganite, Microstructure, Pechini Method, Powder

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] R. Zenati, C. Bernard, C. Calmet, S. Guillemet, G. Fantozzi and B. Durand: J. Eur. Ceram. Soc. Vol. 25 (2005), p.935.

Google Scholar

[2] R.J. Bell, G.J. Millar and J. Drennan: Solid State Ionics Vol. 131 (2000), p.211.

Google Scholar

[3] J. Fleig: Annual Rev. Mat. Res. Vol. 33 (2003), p.361.

Google Scholar

[4] H. Aono, M. Tsuzaki, A. Kawaura, M. Sakamoto, E. Traversa and Y. Sadaoka: J. Amer. Ceram. Soc. Vol. 84 (2001), p.969.

Google Scholar

[5] M. Kakihana, M. Arima, M. Yoshimura, N. Ikeda and Y. Sugitani: J. Alloys and Compounds Vol. 283 (1999), p.102.

Google Scholar

[6] V. Uskoković and M. Drofenik: J. Magnetism and Magnetic Materials Vol. 303 (2006), p.214.

Google Scholar

[7] A.B.P. Lever: Inorganic Electronic Spectroscopy (2nd edition, Elsevier, Amsterdam 1984), pp.433-457.

Google Scholar

[8] M. Matzapetakis, N. Karligiano, A. Bino, M. Dakanali, C.P. Raptopoulou, V. Tangoulis, A. Terzis, J. Giapintzakis and A. Salifoglou: Inorganic Chemistry Vol. 39 (2000), p.4044.

DOI: 10.1021/ic9912631

Google Scholar

[9] M. Gaudon, Ch. Laberty-Robert, F. Ansart, P. Stevens and A. Rousset: Solid State Sciences Vol. 4 (2002), p.125.

DOI: 10.1016/s1293-2558(01)01208-0

Google Scholar

[10] J. Sfeir, S. Vaucher, P. Holtappels, U. Vogt, H. -J. Schindler, J. Van Herle, E. Suvorova, P. Buffat, D. Perret, N. Xanthopoulos and O. Bucheli: J. Eur. Ceram. Soc. Vol. 25 (2005), p. (1991).

DOI: 10.1016/j.jeurceramsoc.2005.03.124

Google Scholar

[11] Y. Liu, H. Zheng, J. Liu and T. Zhang: Chemical Engineering Journal Vol. 89 (2002), p.213.

Google Scholar

[12] T. Arakawa, A. Yoshida and J. Shiokawa: Mat. Res. Bull. Vol. 15 (1980), p.269.

Google Scholar