NDLI: Structural and Redox Properties of the La (1-x) Srxmn0.5co0.5o3 (x= 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) Nano-catalysts for Carbon Monoxide Oxidation

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Structural and Redox Properties of the La (1-x) Srxmn0.5co0.5o3 (x= 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) Nano-catalysts for Carbon Monoxide Oxidation

Content Provider	Semantic Scholar
Author	Lotfi, Mahmod Gholizadeh, Ahmad Malekzadeh, A. Stephen
Copyright Year	2014
Abstract	Article history : Structural features of the La (1-x)Sr xMn 0.5 Co 0.5 O3 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) nano-particles were investigated using X-ray powder diffraction and FT-IR spectroscopy. The characterization of compounds by X-ray powder diffraction and using Fullprof program show a cubic structure (Pm3m space group) for x = 0.0 and a rhombohedra structure (R-3c space group) for the Sr substituted La (1-x)Sr xMn 0.5 Co 0.5 O3 samples. Crystallite size and unit cell parameters decrease with Sr substitution. The electrical conductivity of the samples in oxidizing (air) and reducing atmosphere (6%CO in nitrogen) as well as band gap of the samples have been investigated to interpret the performance of the samples. Results show that their behavior is enhanced non-un iformly with increase in Sr substitution. An increase of Sr subs titution up to 0.5 enhances the performance of the samples and an opti mal catalytic activity in the low-temperature conversion of CO to CO 2. It is mainly attributed to a decrease of the crystallite size.
Starting Page	65
Ending Page	70
Page Count	6
File Format	PDF HTM / HTML
Volume Number	2
Alternate Webpage(s)	http://jmatpro.iaun.ac.ir/article_553664_387b553f5495cd46929fff3f64d59233.pdf
Alternate Webpage(s)	https://www.sid.ir/FileServer/JE/1011620140407.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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