Synthesis and Characterization of Barium Titanate by Solid-State Reaction

Andrade, Mônica Calixto de; Carneiro, Geysa N.; Moreira, Elizabeth L.; Araújo, Jorge Corrêa de; Moraes, Valéria C.A.

doi:10.4028/www.scientific.net/msf.802.285

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…Pure and doped BaTiO3 powder were synthesize using solid-state reaction that is identified by XRD, FTIR, and SEM. XRD detected a perovskite structure that is tetragonal at a temperature above 700 0 C and 500 0 C for the pure and doped BaTiO3 powder, (Andrade et al, 2014). Barium titanate powders doped with Er 3+ were prepared via the solid-state reaction technique with different concentrations and site substitution, and then characterize using XRD and Raman Spectra.…”

Section: Solid-state Methodsmentioning

confidence: 99%

Advances in the synthesis, characterizations and applications of barium titanate. A review

Lariski,

Zangina,

Ndikilar

et al. 2023

dujopas

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Barium titanate (BaTiO3) is a compound that has a structure called perovskite. Synthesis of BaTiO3 can be done by employing separate methods. BaTiO3 has four polymorphs which are cubic, tetragonal, orthorhombic and rhombohedral, depending on the temperature, it has a tetragonal structure at ambient temperature. This paper aims to review different synthesis methods of BaTiO3, these techniques can be used in the process of making ceramics as a molding material and also as an intermediate between thin films of metal oxides in various applications. The characterization techniques mostly used in determining the lattice constant, crystal structure functional group, morphology, elemental compositions and electrical properties, of the nanomaterial, including the various applications of BaTiO3 which includes modern electronic appliances and electrical power systems, the Multilayer Ceramic Capacitors (MLCs), biological, and microwave absorption, due to their piezoelectric and dielectric properties are reviewed.

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Section: Solid-state Methodsmentioning

confidence: 99%

Advances in the synthesis, characterizations and applications of barium titanate. A review

Lariski,

Zangina,

Ndikilar

et al. 2023

dujopas

View full text Add to dashboard Cite

show abstract

“…At 950 °C temperature, there was a low intensity of TiO 2 (Titanium Dioxide) but there was no 3 (Barium Carbonate). The symbol * show the peaks for the (TiO 2 ) titanium dioxide this means not the complete reaction of formation of barium titanate because of the present of another peak belong to TiO 2 [8]. At (1400 °C) temperature there was no residual material detected by XRD technique indicated to complete reaction, this reaction appears high resolution in 2θ position for peaks indicated to a good crystallinity and formation of pure barium titanate (BaTiO 3 ).…”

Section: X-ray Diffraction Of Pure Batio 3 (Bt)mentioning

confidence: 98%

Preparation and Study the Structure of Pure and Impure Barium Titanate with Zr4+ Ion

Najim¹,

Hekmat²

2019

ETJ

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“…Moreover, sodium is also detected in undoped and Ca-and Bi-doped samples, due to its presence in KOH starting solution. According to the literature, K + , Na + , Ca 2+ , and Bi 3+ ions substitute Ba 2+ in the A-site of the perovskitic structure, mainly because of the ionic radius dimension [65][66][67][68][69][70][71]. According to the values reported in Table 4, the Ba/Ti ratio decreases in the doped samples with respect to undoped BT.…”

Section: Effect Of Dopingmentioning

confidence: 99%

Effect of Hydrothermal Treatment and Doping on the Microstructural Features of Sol-Gel Derived BaTiO3 Nanoparticles

et al. 2021

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Barium Titanate (BaTiO3) is one of the most promising lead-free ferroelectric materials for the development of piezoelectric nanocomposites for nanogenerators and sensors. The miniaturization of electronic devices is pushing researchers to produce nanometric-sized particles to be embedded into flexible polymeric matrices. Here, we present the sol-gel preparation of crystalline BaTiO3 nanoparticles (NPs) obtained by reacting barium acetate (Ba(CH3COO)2) and titanium (IV) isopropoxide (Ti(OiPr)4). The reaction was performed both at ambient conditions and by a hydrothermal process carried on at 200 °C for times ranging from 2 to 8 h. Doped BaTiO3 nanoparticles were also produced by addition of Na, Ca, and Bi cations. The powders were annealed at 900 °C in order to improve NPs crystallinity and promote the cubic-to-tetragonal (c⟶t) phase transformation. The microstructural features of nanoparticles were investigated in dependence of both the hydrothermal reaction time and the presence of dopants. It is found that short hydrothermal treatment (2 h) can produce BaTiO3 spherical and more homogeneous nanoparticles with respect to longer hydrothermal treatments (4 h, 6 h, 8 h). These particles (2 h) are characterized by decreased dimension (approx. 120 nm), narrower size distribution and higher tetragonality (1.007) in comparison with particles prepared at ambient pressure (1.003). In addition, the short hydrothermal treatment (2 h) produces particles with tetragonality comparable to the one obtained after the longest process (8 h). Finally, dopants were found to affect to different extents both the c⟶t phase transformation and the crystallite sizes.

show abstract

Synthesis and Characterization of Barium Titanate by Solid-State Reaction

Cited by 9 publications

References 14 publications

Advances in the synthesis, characterizations and applications of barium titanate. A review

Advances in the synthesis, characterizations and applications of barium titanate. A review

Preparation and Study the Structure of Pure and Impure Barium Titanate with Zr4+ Ion

Effect of Hydrothermal Treatment and Doping on the Microstructural Features of Sol-Gel Derived BaTiO3 Nanoparticles

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