Results 181 to 190 of about 6,144 (227)

Effect of calcium doping on LaCoO3 prepared by Pechini method

Powder Technology, 2013
Abstract Calcium doped lanthanum cobaltite (La1 − xCaxCoO3) (x = 0, 0.2, 0.4, 0.6, 0.8) with different concentrations has been prepared by modified Pechini type polymerizable method. The X-ray diffraction pattern of the calcium doped samples shows the formation of perovskite material in cubic structure.
D Arun Kumar, S. Selvasekarapandian, H Nithya, Jarkko Leiro, Yoshitake Masuda, Sun-Dong Kim, Sang-kuk Woo   +6 more
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Crystallization mechanism of LiNiO2 synthesized by Pechini method

Journal of Crystal Growth, 2001
Abstract Submicron and stoichiometric LiNiO 2 was successfully crystallized at low temperatures using Pechini method, which was developed to crystallize mixed cation oxide from organic precursors. The crystal structure and the effect of oxygen were investigated in this study.
S.P Lin, K.Z Fung, Y.M Hon, M.H Hon
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The Preparation of BaCeO3 Nanopowders by Pechini Method

Proceedings of the 2019 The 2nd International Conference on Robotics, Control and Automation Engineering, 2019
BaCeO3 Perovskite-type oxide single phase nanopowders were prepared by the Pechini method. A polymeric precursor was synthesized by use of Ba(NO3)2 and Ce(NO3)3•6H2O AR powders as metal ion sources, and citric acid and ethylene glycol as chelating agents and reaction medium, respectively.
Xiaoyan Deng, Guoheng Zhang, Peiyu Wang, Chengwen Qiang   +3 more
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Preparation of nanocrystalline ferroelectric BaBi4Ti4O15 by Pechini method

Materials Letters, 2006
A gel was formed when an aqueous solution of BaCl2, BiNO3, TiOCl2 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600 °C produced the nano crystallites of ternary oxide, BaBi4Ti4O15 (BBT). The phase contents and lattice parameters were studied by the powder X-ray diffraction (XRD).
A. Vadivel Murugan, S.C. Navale, V. Ravi
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The blue phosphor Sr2CeO4 synthesized by Pechini’s method

Journal of Alloys and Compounds, 2001
Abstract Blue emitters are very attractive research subjects because of their possible industrial applications as phosphors for field emission displays. Recently, a blue phosphor, Sr 2 CeO 4 , was identified by a combinatorial materials synthesis technique.
O.A Serra, V.P Severino, P.S Calefi, S.A Cicillini   +3 more
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Europium(III)-containing zinc oxide from Pechini method

Journal of Alloys and Compounds, 2002
ZnO:Eu3+ (0.1 and 3 at%) with average particle size of 500 nm were prepared by the Pechini method. Photoluminescence spectroscopy evidences that there is no energy transfer between ZnO and Eu3+ ion. The emission spectrum at 77 K shows that Eu3+ ions occupy at least three different sites in ZnO:Eu 3 at% sample.
Lima, SAM, Sigoli, F. A., Davolos, Marian Rosaly, Jafelicci, M.   +3 more
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Nanocystalline ZnO films prepared via polymeric precursor method (Pechini)

Physica B: Condensed Matter, 2010
Abstract The polymeric precursor method (Pechini) was employed to prepare high-quality nanocrystalline zinc oxide (ZnO) films. Briefly, the process started off with the preparation of a coating solution by the Pechini process followed by a coating of the glass substrates by a dip-coating technique and subsequent heat-treatment of the as-deposited ...
C. Sánchez, J. Doria, C. Paucar, M. Hernandez, A. Mósquera, J.E. Rodríguez, A. Gómez, E. Baca, O. Morán   +8 more
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La0.7Sr0.3MnO3 Nanoparticles Synthesized via the (Pechini) Polymeric Precursor Method

Journal of Superconductivity and Novel Magnetism, 2012
In this paper, we report the preparation of La0.7Sr0.3MnO3 colossal magnetoresistance nanoparticles by means of the polymeric precursor method, at a temperature of 650 °C. Rietveld refinement of the X-ray powder diffraction spectra shows that the chemically-synthesized manganite is single-phase with the space group R3C.
J. Mera, M. Mera, C. Cordoba, O. Paredes, O. Morán   +4 more
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BaTi1–xZrxO3 nanopowders prepared by the modified Pechini method

Journal of Thermal Analysis and Calorimetry, 2007
The results reported here based on a study of BaTi1–xZrxO3 (x=0, 0.2 and 1) nanometric powders prepared by the modified Pechini method. The powder samples annealed from 600 to 1000°C/2 h were characterized by thermogravimetric analysis (TG), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM ...
M. I. B. Bernardi, E. Antonelli, A. B. Lourenço, C. A. C. Feitosa, L. J. Q. Maia, A. C. Hernandes   +5 more
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Modified Pechini synthesis of hexaferrite Co2Z with high permeability

Materials Letters, 2012
Abstract Magnetic ceramic hexagonal ferrites with strong magnetocrystalline anisotropy are considered for application in high frequency antennas. In particular, Ba 3 Co 2 Fe 24 O 41 (Co 2 Z) is expected to exhibit a high permeability and low loss at frequencies > 1 GHz.
Lang Qin, Henk Verweij
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