Heating rate and temperature effects on the BaTiO3 formation by thermal decomposition of (Ba,Ti) organic precursors during the Pechini process

Ramajo, Leandro Alfredo; Parra, Rodrigo; Reboredo, María Marta; Zaghete, M. A.; Castro, M. S.

doi:10.1016/j.matchemphys.2007.06.050

Cited by 17 publications

(4 citation statements)

References 16 publications

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“…Secondary phases containing vanadium were not detected. Because XRD is sensitive to concentrations up to 0.5 wt.%, it can be suggested that even the largest concentration of vanadium solubilizes in the CCTO and/or CTO lattices [31,32]. Also, in Fig.…”

Section: Methodsmentioning

confidence: 99%

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Ramajo

Parra

Varela

et al. 2010

Journal of Alloys and Compounds

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Section: Methodsmentioning

confidence: 99%

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Ramajo

Parra

Varela

et al. 2010

Journal of Alloys and Compounds

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“…Rapid heating during calcination was found to be a major factor inhibiting the formation of CO 3 2− ions residue as reported by Ramajo et al [15] for BaTiO 3 prepared by Pechini method. Based on their report and the work by Lee et al [10], this study has been carried out to improve the properties of BaCe 0.95 Yb 0.05 O 2.975 (denoted as BCYb) prepared by the sol-gel method.…”

Section: Introductionmentioning

confidence: 53%

Properties of sol–gel prepared BaCeO3 solid electrolyte using acetate precursors

Osman

Talib

Hamid

2008

Ionics

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A sol-gel route was used to prepare Yb-doped BaCeO 3 at the relatively low temperature of 1,100°C. At this calcination temperature, the carbonate residues were completely decomposed and the high crystallinity of Ybdoped BaCeO 3 powders with orthorhombic structure was obtained. The loose particles in nanosized range was observed from scanning electron micrographs but agglomerates with size ranging from 200 to 500 nm seem to dominate the bulk powder. Density of the pellet sintered at 1,400°C for 24 h was about 95% of the theoretical density. Morphology of the fractured pellet revealed that the diameter of grains was between 1 and 3 μm. AC electrical conductivity of the sample in wet air was carried out using impedance spectroscopy in the range of 1 Hz to 10 MHz. At 300°C, it was found that at high frequencies the imaginary values of the impedance were positive. The effect was attributed to the presence of an inductive element in the experimental setup.

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“…BaCO 3 could not be detected by XRD in the 25 : 2 sample. Its presence, however, was evidenced by FTIR-a sensitive technique that can detect traces of impurities such as barium carbonate in very small quantities (~0.6 wt%) [46]. Theoretically, the origin of barium carbonate in BaTiO 3 samples produced by sol-gel methodologies is due to the reaction between hydrolyzed barium species and atmospheric CO 2 [47].…”

Section: Resultsmentioning

confidence: 99%

An Eco-Friendly Method of BaTiO₃ Nanoparticle Synthesis Using Coconut Water

Gomes

Magalhães

Paschoal

et al. 2018

Journal of Nanomaterials

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BaTiO 3 nanoparticles were successfully synthesized by a new coconut water-based sol-gel method using Ba(CH 3 COO) 2 and TiCl 3 as the starting salts. The influence of the amount of coconut water and calcination conditions on the barium titanate crystallization was investigated. The resulting nanoparticles were characterized by thermogravimetric and differential thermal analysis, X-ray diffraction, scanning electron microscopy, and Raman and Fourier transform infrared (FTIR) spectroscopies. The ferroelectric tetragonal single phase of BaTiO 3 was obtained in samples prepared with a ratio of coconut water volume (mL)/BaTiO 3 mass (g) of 25 : 2 and 30 : 2, calcined at 1100°C, which was confirmed by XRD measurements. Crystallites with an average size of about 31 nm for both samples were obtained, and microscopy images revealed the presence of particles in the range of 40 to 60 nm. Raman and FTIR spectra confirmed the dominant tetragonal phase of BaTiO 3 , meanwhile traces of BaCO 3 were identified in FTIR spectra.

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Heating rate and temperature effects on the BaTiO3 formation by thermal decomposition of (Ba,Ti) organic precursors during the Pechini process

Cited by 17 publications

References 16 publications

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Properties of sol–gel prepared BaCeO3 solid electrolyte using acetate precursors

An Eco-Friendly Method of BaTiO₃ Nanoparticle Synthesis Using Coconut Water

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Heating rate and temperature effects on the BaTiO3 formation by thermal decomposition of (Ba,Ti) organic precursors during the Pechini process

Cited by 17 publications

References 16 publications

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3

Properties of sol–gel prepared BaCeO3 solid electrolyte using acetate precursors

An Eco-Friendly Method of BaTiO3 Nanoparticle Synthesis Using Coconut Water

Contact Info

Product

Resources

About

An Eco-Friendly Method of BaTiO₃ Nanoparticle Synthesis Using Coconut Water