Structural and optical characterization of BaSnO3 nanopowder synthesized through a novel combustion technique

Deepa, Appadurai; Vidya, S.; Manu, P.C.; Solomon, Sam; John, Alexander; Thomas, Jijimon K.

doi:10.1016/j.jallcom.2010.10.056

Cited by 97 publications

(40 citation statements)

References 35 publications

(37 reference statements)

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“…It is mentioned in the literature that absorption bands at 856, 1050, and 1450 cm −1 are the characteristic bands of BaCO 3 [43]. The presence of bands III and IV indicate that sintered powders have BaCO 3 as the impurity phase.…”

Section: Ftir Spectroscopymentioning

confidence: 96%

“…Absorption band I present in samples BSL5 and BSL10 is assigned to vibration from hydroxyl metals (Sn-OH) [41], band II to the Sn-O bond, i.e., structural development of perovskite phase [42], and band III to BaCO 3 [43]. An intense band IV can be assigned to either BaCO 3 and/ or M-OH group vibration [43,44]. The broad band V indicates water in the sample which is absorbed from the atmosphere either by the samples and/or by the KBr pellet [45].…”

Section: Ftir Spectroscopymentioning

confidence: 99%

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Electrical characterization of porous La-doped BaSnO3 using impedance spectroscopy

Ansaree

Upadhyay

2015

Ionics

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A few compositions in the system Ba 1−x La x SnO 3 (x=0.00, 0.01, 0.05, and 0.10) have been synthesized via the solid state ceramic route. The synthesized powders have been characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, Raman spectroscopy, Fourier transformation infrared, thermogravimetrical analysis, and differential thermal analysis techniques. The powder X-ray diffraction pattern of the samples confirms the formation of a single-phase solid solution only up to 0.50≤x. It was found that all the samples have a cubic crystal structure. The electrical properties of La-modified BaSnO 3 were studied using ac impedance spectroscopy technique over a wide range of temperatures (50-650°C) in the frequency range of 10 Hz-13 MHz. The complex impedance plots above 300°C show that total impedance is due to the contributions of grain and grain boundaries. The resistance of these contributions has been determined. Variation of these resistances with temperature shows the presence of two different regions with different slopes. The nature of the variation of conductivity of the grain and grain boundaries is different in different regions. Based on the value of activation energy, it is proposed that conduction via hopping of doubly ionized oxygen vacancies (V O •• ) is taking place in the temperature region of 300-450°C, whereas in the temperature region of 450-650°C, it is due to proton, i.e., OH • ions, hopping.

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Section: Ftir Spectroscopymentioning

confidence: 96%

Section: Ftir Spectroscopymentioning

confidence: 99%

Electrical characterization of porous La-doped BaSnO3 using impedance spectroscopy

Ansaree

Upadhyay

2015

Ionics

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“…Barium stannate has perovskite structure and cubic crystal phase [10]. So far, reverse micelle, solid state, coprecipitation, combustion and solgel approach [11][12][13][14][15] have been reported to synthesize barium stannate. Since shape, size and size distribution have key and considerable impact on the characteristics and applications of the nanomaterials, several procedures have been reporting on particle size and shape controlled preparation of nanomaterials [16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline barium stannate: facile morphology-controlled preparation, characterization and investigation of optical and photocatalytic properties

Moshtaghi

Zinatloo-Ajabshir

Salavati‐Niasari

2015

J Mater Sci: Mater Electron

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Pure cubic nanocrystalline barium stannate was synthesized by new simple coprecipitation strategies that employed tin (II) chloride and [bis(salicylaldehydato) barium (II)] as tin and barium sources in presence of tetramethylethylenediamine (TMED) as a novel precipitating agent. This work is the first successful attempt for the preparation of nanostructured barium stannate by utilizing TMED via a facile coprecipitation way in presence of tin (II) chloride and [bis(salicylaldehydato) barium (II)]. The structural, optical and morphological characteristics of the as-prepared nanostructured barium stannate were studied by UV-vis diffuse reflectance spectroscopy, transmission electron microscopy, X-ray diffraction, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy and energy dispersive X-ray microanalysis (EDX). According to the SEM results, it was found that shape and size of the barium stannate can be dramatically controlled by setting critical preparation factors such as the barium source, precipitating agent type, reaction pH, surfactant type and dosage of surfactant. The photocatalytic characteristics of as-obtained nanocrystalline barium stannate were also examined by degradation of erythrosine dye as water contaminant.

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“…Various methods have been used to produce BaSnO 3 and SrSnO 3 nanoparticles including sol-gel [2,6,18], hydrothermal [1,3], coprecipitation [19], microwave-assisted [20,21] and auto-ignited combustion [22]. Sub-micron sized particles of barium stannate have been reported by the thermal decomposition of oxalates (BaSn(C 2 O 4 ) 2 ) at 1000 8C [23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of MSnO3 (M=Ba, Sr) nanoparticles by reverse micelle method and particle size distribution analysis by whole powder pattern modeling

Ahmed

Blakely

Bruno

et al. 2012

Materials Research Bulletin

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Structural and optical characterization of BaSnO3 nanopowder synthesized through a novel combustion technique

Cited by 97 publications

References 35 publications

Electrical characterization of porous La-doped BaSnO3 using impedance spectroscopy

Electrical characterization of porous La-doped BaSnO3 using impedance spectroscopy

Nanocrystalline barium stannate: facile morphology-controlled preparation, characterization and investigation of optical and photocatalytic properties

Synthesis of MSnO3 (M=Ba, Sr) nanoparticles by reverse micelle method and particle size distribution analysis by whole powder pattern modeling

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