Next Article in Journal
Up-Conversion Luminescence Properties of Lanthanide-Gold Hybrid Nanoparticles as Analyzed with Discrete Dipole Approximation
Previous Article in Journal
Formation of a Thin Continuous GaSb Film on Si(001) by Solid Phase Epitaxy
Open AccessArticle

Full Tetragonal Phase Stabilization in ZrO2 Nanoparticles Using Wet Impregnation: Interplay of Host Structure, Dopant Concentration and Sensitivity of Characterization Technique

1
National Institute for Laser, Plasma and Radiation Physics, RO 76900 Bucharest-Magurele, Romania
2
Department of Chemistry, University of Bucharest, B-dul Regina Elisabeta, nr. 4-12, 030018 Bucharest, Romania
3
National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele-Ilfov, Romania
4
Department of Molecular Sciences, Biocenter, SLU, Box 7015, SE-75007 Uppsala, Sweden
*
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(12), 988; https://doi.org/10.3390/nano8120988
Received: 2 November 2018 / Revised: 22 November 2018 / Accepted: 23 November 2018 / Published: 28 November 2018
Here, we show that wet impregnation of ZrO2 nanoparticles with 10% and 20% Eu oxide followed by thermal anneal in air above 500 °C produces full stabilization of the tetragonal phase of ZrO2 without evidencing any phase separation. The bare ZrO2 nanoparticles were obtained using three synthetic methods: oil in water microemulsion, rapid hydrothermal, and citrate complexation methods. The homogeneity of the solid solutions was assessed using X-ray diffraction, Raman spectroscopy, high resolution transmission electron microscopy, and advanced luminescence spectroscopy. Our findings show that wet impregnation, which is a recognized method for obtaining surface doped oxides, can be successfully used for obtaining doped oxides in the bulk with good homogeneity at the atomic scale. The limits of characterization technique in detecting minor phases and the roles of dopant concentration and host structure in formation of phase stabilized solid solutions are also analyzed and discussed. View Full-Text
Keywords: ZrO2; tetragonal phase stabilization; average structure; local symmetry; wet impregnation; luminescence ZrO2; tetragonal phase stabilization; average structure; local symmetry; wet impregnation; luminescence
Show Figures

Figure 1

MDPI and ACS Style

Colbea, C.; Avram, D.; Cojocaru, B.; Negrea, R.; Ghica, C.; Kessler, V.G.; Seisenbaeva, G.A.; Parvulescu, V.; Tiseanu, C. Full Tetragonal Phase Stabilization in ZrO2 Nanoparticles Using Wet Impregnation: Interplay of Host Structure, Dopant Concentration and Sensitivity of Characterization Technique. Nanomaterials 2018, 8, 988.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop