Low temperature synthesis and characterization of single phase multi-component fluorite oxide nanoparticle sols

We report for the first time a simple, scalable approach for the synthesis of single-phase multi-component fluorite oxide nanoparticle sols: Gd(0.2)La(0.2)Y(0.2)Hf(0.2)Zr(0.2)O(2) (GLYHZ) and Gd(0.2)La(0.2)Ce(0.2)Hf(0.2)Zr(0.2)O(2) (GLCHZ) using chemical co-precipitation followed by peptization in a...

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Detalles Bibliográficos
Autores principales: Anandkumar, Mariappan, Bhattacharya, Saswata, Deshpande, Atul Suresh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070433/
https://www.ncbi.nlm.nih.gov/pubmed/35528557
http://dx.doi.org/10.1039/c9ra04636d
Descripción
Sumario:We report for the first time a simple, scalable approach for the synthesis of single-phase multi-component fluorite oxide nanoparticle sols: Gd(0.2)La(0.2)Y(0.2)Hf(0.2)Zr(0.2)O(2) (GLYHZ) and Gd(0.2)La(0.2)Ce(0.2)Hf(0.2)Zr(0.2)O(2) (GLCHZ) using chemical co-precipitation followed by peptization in acidic medium under mild conditions (≤80 °C). High resolution transmission electron microscopy (HRTEM) along with selected area electron diffraction (SAED) studies confirm fully crystalline single-phase cubic fluorite nanoparticles having a particle size of about 2–3 nm with a narrow size distribution was obtained. The powder X-ray diffraction (XRD) and Rietveld refinement studies of samples calcined at 500 °C for 4 hours confirm a single phase solid solution and a lack of secondary phases.

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