A straightforward approach for the synthesis of nanostructured Y2O3 particles: Synthesis, morphology, microstructure and crystal imperfection

Elif Emil Kaya, Sebahattin Gürmen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

A facile and straightforward approach has been implemented for the synthesis of nanostructured Y2O3 particles via sol-gel method from yttrium nitrate solution. The individual effects of calcination temperature, precipitation-chelating agent and precursor concentration on microstructural parameters, crystal defects and morphology of Y2O3 were investigated in detail. The morphology of synthesized nanostructured Y2O3 particles was revealed by scanning electron microscopy (SEM). X-ray diffraction (XRD) and Williamson Hall analysis were used to find out how Y2O3 crystallite size, lattice strain-stress, dislocation density and morphology affect the sol-gel process parameters. Comparative studies for determining crystallite size of particles were carried out by Modified Debye-Scherer and Williamson Hall analysis. A more detailed microstructural analysis and investigation of crystallographic imperfections were conducted by Williamson- Hall (W-H) method. W-H analysis was carried out on Y2O3 particles with spherical shape and sponge morphology for the first time. Results reveal that as calcination temperature is increased from 700 °C to 900 °C, the crystallite size increases from 37.15 nm to 49.49 nm while lattice strain increases from 8.154 × 10−4 to 8.696 × 10−4. It is also found that, an increment in solution concentration from 0.1 mol/L to 0.2 mol/L results in crystallite size decrement from 47.27 nm to 44.37 nm. A further increment from 0.2 mol to 0.4 mol/L leads to crystallize size increase from 44.37 nm to 49.67 nm.

Original languageEnglish
Article number113668
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume115
DOIs
Publication statusPublished - Jan 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Funding

Authors would like to thank; Prof. Dr. Kürşat Kazmanlı for his suggestion and encouragement, Prof. Dr. Gültekin Göller and Technician Hüseyin Sezer for SEM/XRD analyses and Prof. Dr. Servet Turan for TEM analysis. The authors acknowledge the financial support from the Research fund for the Master of Science Program at Istanbul Technical University under Grant number 39298 .

FundersFunder number
Istanbul Teknik Üniversitesi39298

    Keywords

    • Crystal structure
    • Defects
    • Electron microscopy
    • Nanostructures
    • Sol-gel growth
    • X-ray diffraction

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