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Synthesis and characterisation of Y2O3 using ammonia oxalate as a precipitant in distillate pack co-precipitation process

Foo, Yuan Teng, Abdullah, Ahmad Zuhairi, Amini Horri, Bahman and Salamatinia, Babak (2018) Synthesis and characterisation of Y2O3 using ammonia oxalate as a precipitant in distillate pack co-precipitation process Ceramics International, 44 (15). pp. 18693-18702.

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Synthesis and Characterisation of Y2O3 using Ammonia Oxalate as a Precipitant in Distillate Pack Co-Precipitation Process.docx - Accepted version Manuscript

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Abstract

Pure cubic phase yttrium oxide or yttria (Y2O3) nanoparticles were successfully synthesised via the co-precipitation method in a distillate pack, followed by calcination of the precursor, yttrium oxalate (Y2(C2O4)3) in a furnace. The co-precipitation reaction temperature was varied between room temperature and 100 °C for various reaction durations ranging between 0.5 and 3 h. The as-synthesised precursor was characterised using a thermogravimetric analyser (TGA) and Fourier transform infrared spectrometer (FTIR). The Y2O3 nanoparticles obtained from the calcination of the precursor at various calcination conditions (temperature ranged from 500 to 800 °C for 2–8 h) were characterised using a field emission scanning electron microscope (FESEM), a transmission electron microscope (TEM), X-ray diffraction (XRD), FTIR, a Raman spectrometer, and Brunauer–Emmett–Teller analyser (BET). It was concluded from these characterisations that the optimum processing parameters for pure Y2O3 nanoparticles are co-precipitation reaction at 40 °C for 1 h, followed by calcination at 650 °C for 4 h. This method yielded semispherical Y2O3 nanoparticles with crystallite size ranging between 7 and 21 nm and a large specific surface area of 7.40 m2/g.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Foo, Yuan Teng
Abdullah, Ahmad Zuhairi
Amini Horri, Bahmanb.aminihorri@surrey.ac.uk
Salamatinia, Babak
Date : 11 July 2018
DOI : 10.1016/j.ceramint.2018.07.098
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Nanoparticles; Yttrium oxide; Yttria; Precipitation; Ammonium oxalate
Depositing User : Clive Harris
Date Deposited : 12 Oct 2018 09:39
Last Modified : 12 Jul 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/849653

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