Development of MgO–Y2O3 Composite Nanopowder by Pechini Sol–Gel Method: Effect of Synthesis Parameters on Morphology, Particle Size, and Phase Distribution

MgO–Y 2 O 3 composite nanopowder was synthesized from Pechini method. Several experiments were conducted to examine the effects of the molar ratio of citric acid (CA) to transition metals (TM) calcination temperature and the pH value on the morphology, phases, and specific surface area of the sample...

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Bibliographic Details
Published in:Journal of cluster science 2017-05, Vol.28 (3), p.1523-1539
Main Authors: Ghorbani, S., Razavi, R. Sh, Loghman-Estarki, M. R., Alhaji, A.
Format: Article
Language:English
Subjects:
Acids
Catalysis
Ceramics
Chemistry
Chemistry and Materials Science
Citric acid
Differential thermal analysis
Fourier transforms
Grain size
Homogeneity
Infrared analysis
Inorganic Chemistry
Investigations
Magnesium oxide
Microscopy
Morphology
Nanochemistry
Nanocomposites
Nanoparticles
Nitrates
Optical properties
Original Paper
Particle size
Particle size distribution
Phase distribution
Physical Chemistry
Polyesters
Polymerization
Sol-gel processes
Specific surface
Surface area
Synthesis
Temperature
Transition metals
Yttrium oxide
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Summary:MgO–Y 2 O 3 composite nanopowder was synthesized from Pechini method. Several experiments were conducted to examine the effects of the molar ratio of citric acid (CA) to transition metals (TM) calcination temperature and the pH value on the morphology, phases, and specific surface area of the samples. As-synthesized MgO–Y 2 O 3 composite nanopowder were characterized by X-ray diffraction, field-emission scanning electron microscope (FESEM), transmission electron microscope, BET, thermal gravimetric–differential thermal analysis and Fourier transform infrared analysis. FESEM analysis revealed that the sample with the pH value of 1 and CA:TM = 10:1, had good homogeneity, and a spherical morphology with the particle size of 19.5 nm, while by increasing the pH up to 7 and 12, the particle size increased to 28.5 and 30.9 nm respectively. By increasing the mole ratio of CA to TM, the particle size and the specific surface area of MgO–Y 2 O 3 composite nanopowder has reduced and by increasing the pH from 1 to 7 and 12, the particle size and the specific surface area of MgO–Y 2 O 3 composite nanopowder has increased.
ISSN:1040-7278
1572-8862
DOI:10.1007/s10876-017-1162-8