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<strong>A Facile Method of Synthesis and Characterization of Sr Doped CeO2 Nanocrystalline Materials</strong>

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Title Statement <strong>A Facile Method of Synthesis and Characterization of Sr Doped CeO2 Nanocrystalline Materials</strong>
 
Added Entry - Uncontrolled Name Gnanasangeetha, G ; University of Madras
Asvini, V ; University of Madras
Karthik, G ; University of Madras
Ravichandran, K ; University of Madras
Nil
 
Uncontrolled Index Term Condensed Matter Physics - Materials Science
Cerium oxide; Strontium metal; Combustion; XRD; HRSEM; EDX; UV; PL; TGA-DTA and DSC. 
 
Summary, etc. Strontium doped Cerium oxide (Ce1-0.25Sr0.25O2 and Ce1-0.5Sr0.5O2) nanocrystals were synthesized by combustion technique. The synthesized (Ce1-xSrxO2, x = 0.25, 0.5) nanocrystals were annealed at 500° C for 2hr. The phase formation, surface morphology and elemental composition analysis have been studied using XRD, HRSEM and EDXS. XRD and HRSEM measurements revealed that the synthesized nanocrystals were in single phase with face-centered cubic (fcc) structure and that the nano-grains had different sizes. Chemical composition was confirmed using EDXS. The UV-Vis spectroscopic studies revealed that as the Sr doping level increases, the band gap width increases from Eg = 2.9 eV to 2.95 eV. At the same time, the wavelength of maximum absorbance shifts from λabs = 285 to 300 nm. Further, PL studies were performed with excitation wavelength λ = 350 nm and two main emission peaks were observed at 415 and 437 nm respectively. TGA, DTA and DSC measurements were carried out to check the weight loss and the occurrence of endothermic/exothermic reactions
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2021-10-11 15:42:53
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/30702
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 59, ##issue.no## 10 (2021): Indian Journal of Pure & Applied Physics
 
Language Note en
 
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