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Physiochemical properties of combustion synthesized La0.6Sr0.4Co0.8Fe0.2O3-delta perovskite: A role of fuel to oxidant ratio

Title
Physiochemical properties of combustion synthesized La0.6Sr0.4Co0.8Fe0.2O3-delta perovskite: A role of fuel to oxidant ratio
Authors
Jamale, AP[Jamale, Atul P.]Shanmugam, S[Shanmugam, Sangaraju]Bhosale, CH[Bhosale, C. H.]Jadhav, LD[Jadhav, L. D.]
DGIST Authors
Shanmugam, S[Shanmugam, Sangaraju]
Issue Date
2015-12
Citation
Materials Science in Semiconductor Processing, 40, 855-860
Type
Article
Article Type
Article
Keywords
AgglomerationCatalyst ActivityCatalytic ActivityCombustion ReactionsCombustion SynthesisExothermicityHigh Surface-to-Volume RatioNano-Crystalline MaterialsNanocrystalsOxidant RatioOxidantsParticle SizeParticle Size AnalysisParticles SizesPhase PurePhysio-Chemical PropertiesSolution Combustion SynthesisThermoanalysis
ISSN
1369-8001
Abstract
Abstract The solution combustion synthesis is a novel approach to synthesize the nanocrystalline materials with an unexpectedly high surface to volume ratio. Thus, in present paper, La0.6Sr0.4Co0.8Fe0.2O3-δ powders have been synthesized by solution combustion synthesis route at different fuel to oxidant ratio (ψ) and its effect on different physiochemical properties have been studied. The mode of propagation of combustion reaction changed from smoldering to volume with increasing ψ. The thermal analysis shows that exothermicity increased with ψ resulting into enhanced agglomeration as confirmed from particle size distribution. Typically, the size of agglomerate varies from 0.59 to 1.56 μm. The XRD and FT-IR patterns reveal that the phase pure La0.6Sr0.4Co0.8Fe0.2O3-δ is formed at the ψ=2. The TEM particles size is 25 nm. La0.6Sr0.4Co0.8Fe0.2O3-δ powder shows the higher catalytic activity at about 426 °C. © 2015 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/2805
DOI
10.1016/j.mssp.2015.07.091
Publisher
Elsevier Ltd
Related Researcher
Files:
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Collection:
Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


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