Synthesis of MgO-Y2O3 composite nanopowder with a high specific surface area by the Pechini method

S. Ghorbani; R. Shoja Razavi; M. R. Loghman-Estarki; A. Alhaji

doi:10.1016/j.ceramint.2016.09.162

Synthesis of MgO-Y₂O₃ composite nanopowder with a high specific surface area by the Pechini method

S. Ghorbani
, R. Shoja Razavi
, M. R. Loghman-Estarki
, A. Alhaji

Research output: Journal Publication › Article › peer-review

37 Citations (Scopus)

Abstract

Yttria-50 vol% magnesia composite nanopowders with a high specific surface area were synthesized by the Pechini sol–gel method. The influences of the mole ratio of citric acid (CA) to transition metals (TM) and the calcination temperature on the properties of the MgO-Y₂O₃ composite nanopowder were investigated. As-synthesized samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric-differential thermal analysis (TG/DTA) and Fourier transform infrared (FTIR) analysis. The optimized sample synthesized with CA to TM molar ratio of 10:1, had the average grain size of 10–15 nm with 85.14 m²/g specific surface area. Decreasing the calcination temperature from 800 to 600 °C, increased the specific surface area from 85.14 m²/g to 134.92 m²/g. The FESEM results showed that MgO and Y₂O₃ phases had a uniform distribution phase in MgO-Y₂O₃ composite.

Original language	English
Pages (from-to)	345-354
Number of pages	10
Journal	Ceramics International
Volume	43
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2016.09.162
Publication status	Published - 1 Jan 2017
Externally published	Yes

Free Keywords

Pechini method
Powder synthesis
Specific surface area
YO–MgO nanopowders

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2016.09.162

Cite this

@article{d26fee352c384c0cba9904773a54d774,

title = "Synthesis of MgO-Y2O3 composite nanopowder with a high specific surface area by the Pechini method",

abstract = "Yttria-50 vol\% magnesia composite nanopowders with a high specific surface area were synthesized by the Pechini sol–gel method. The influences of the mole ratio of citric acid (CA) to transition metals (TM) and the calcination temperature on the properties of the MgO-Y2O3 composite nanopowder were investigated. As-synthesized samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric-differential thermal analysis (TG/DTA) and Fourier transform infrared (FTIR) analysis. The optimized sample synthesized with CA to TM molar ratio of 10:1, had the average grain size of 10–15 nm with 85.14 m2/g specific surface area. Decreasing the calcination temperature from 800 to 600 °C, increased the specific surface area from 85.14 m2/g to 134.92 m2/g. The FESEM results showed that MgO and Y2O3 phases had a uniform distribution phase in MgO-Y2O3 composite.",

keywords = "Pechini method, Powder synthesis, Specific surface area, YO–MgO nanopowders",

author = "S. Ghorbani and Razavi, \{R. Shoja\} and Loghman-Estarki, \{M. R.\} and A. Alhaji",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = jan,

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doi = "10.1016/j.ceramint.2016.09.162",

language = "English",

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T1 - Synthesis of MgO-Y2O3 composite nanopowder with a high specific surface area by the Pechini method

AU - Ghorbani, S.

AU - Razavi, R. Shoja

AU - Loghman-Estarki, M. R.

AU - Alhaji, A.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Yttria-50 vol% magnesia composite nanopowders with a high specific surface area were synthesized by the Pechini sol–gel method. The influences of the mole ratio of citric acid (CA) to transition metals (TM) and the calcination temperature on the properties of the MgO-Y2O3 composite nanopowder were investigated. As-synthesized samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric-differential thermal analysis (TG/DTA) and Fourier transform infrared (FTIR) analysis. The optimized sample synthesized with CA to TM molar ratio of 10:1, had the average grain size of 10–15 nm with 85.14 m2/g specific surface area. Decreasing the calcination temperature from 800 to 600 °C, increased the specific surface area from 85.14 m2/g to 134.92 m2/g. The FESEM results showed that MgO and Y2O3 phases had a uniform distribution phase in MgO-Y2O3 composite.

AB - Yttria-50 vol% magnesia composite nanopowders with a high specific surface area were synthesized by the Pechini sol–gel method. The influences of the mole ratio of citric acid (CA) to transition metals (TM) and the calcination temperature on the properties of the MgO-Y2O3 composite nanopowder were investigated. As-synthesized samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric-differential thermal analysis (TG/DTA) and Fourier transform infrared (FTIR) analysis. The optimized sample synthesized with CA to TM molar ratio of 10:1, had the average grain size of 10–15 nm with 85.14 m2/g specific surface area. Decreasing the calcination temperature from 800 to 600 °C, increased the specific surface area from 85.14 m2/g to 134.92 m2/g. The FESEM results showed that MgO and Y2O3 phases had a uniform distribution phase in MgO-Y2O3 composite.

KW - Pechini method

KW - Powder synthesis

KW - Specific surface area

KW - YO–MgO nanopowders

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DO - 10.1016/j.ceramint.2016.09.162

M3 - Article

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JO - Ceramics International

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