Modifying the hygroscopic property of La2O3 by Pr, Sm and Nd doping

Show simple item record Gangwar, Bhanu P. Maiti, Sanat Chandra Sharma, Sudhanshu 2017-09-18T10:45:43Z 2017-09-18T10:45:43Z 2017-12
dc.identifier.citation Gangwar, Bhanu P.; Maiti, Sanat Chandra and Sharma, Sudhanshu, "Modifying the hygroscopic property of La2O3 by Pr, Sm and Nd doping", Journal of Solid State Chemistry, DOI: 10.1016/j.jssc.2017.08.036, vol. 256, pp. 109-115, Dec. 2017. en_US
dc.identifier.issn 224596
dc.description.abstract Combustion synthesized La2O3, La2-2xPr2xO3 (x = 0.025–0.30), La2-2xNd2xO3 (x = 0.025–0.50), La2-2xSm2xO3 (x = 0.025–0.30) and their subsequently formed hydroxide phases were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The hydroxylation reaction (hygroscopic property) of oxides in an open atmosphere was monitored by X-ray diffraction (XRD). All of these oxides hydroxylate to form stable hydroxides at room temperature upon exposure to open atmosphere for certain interval of time. La2O3 shows rapid hydroxylation reaction as compared to other oxides (La2-2xM2xO3, M = Pr, Nd, Sm). It is observed that La2-2xPr2xO3 shows the slowest hydroxylation reaction compared to La2-2xNd2xO3 and La2-2xSm2xO3. Further, as the concentration of dopant ion concentration increases in each La2-2xPr2xO3 (x = 0.05, 0.15 and 0.30), La2-2xNd2xO3 (x = 0.05, 0.15, 0.30 and 0.50) and La2-2xSm2xO3 (x = 0.05, 0.15 and 0.30), the hydroxylation reaction becomes slower consecutively. Overall, 30% Pr doped La2O3 (La1.40Pr0.60O3) shows the highest stability (slowest rate of hydroxylation) in open atmosphere at room temperature.
dc.description.statementofresponsibility by Bhanu P.Gangwar, Sanat Chandra Maiti and Sudhanshu Sharma
dc.format.extent vol. 256, pp. 109-115
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject La2O3 en_US
dc.subject La(OH)3 en_US
dc.subject Pr doped La2O3 en_US
dc.subject Nd doped La2O3 en_US
dc.subject Sm doped La2O3 en_US
dc.subject Hydroxylation en_US
dc.subject Solution combustion en_US
dc.subject Calcination en_US
dc.subject Concentration en_US
dc.title Modifying the hygroscopic property of La2O3 by Pr, Sm and Nd doping en_US
dc.type Article en_US
dc.relation.journal Journal of Solid State Chemistry

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