LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Simple and efficient controlled hydrothermal synthesis of elliptic-triangle-like CeO2 nanosheets: precursor synthesis, tuneable morphology and optical properties

Photo by philatz from unsplash

The elliptic-triangle-like CeO2 nanosheets with many fissures have been purposefully fabricated via controlling the morphology of CeCO3OH precursors by an efficient hydrothermal route. The X-ray diffraction results indicate that the… Click to show full abstract

The elliptic-triangle-like CeO2 nanosheets with many fissures have been purposefully fabricated via controlling the morphology of CeCO3OH precursors by an efficient hydrothermal route. The X-ray diffraction results indicate that the calcined samples have a cubic fluorite structure of CeO2 with no crystalline impurity phase. The scanning electron microscope images display that the morphology of the as-synthesized nanostructures gradually changes from diamond-like to tabular, then to elliptic-triangle-like nanosheet, and finally to fireworks-like/circular nanosheets mixed structure with the decrease of reaction temperature. X-ray photoelectron spectroscopy and Raman analyses demonstrate that there are Ce3+ ions and oxygen vacancies in the surface of samples. It is also found that there is a red-shifting in the band gap of the obtained material compared to bulk one, which is mainly attributed to the influences of the Ce3+ ions, oxygen vacancies and the morphology. All the samples exhibit the similar emission peaks of room temperature photoluminescence and the emission intensity increases with the increase of concentration of oxygen vacancies.

Keywords: like ceo2; triangle like; morphology; elliptic triangle; synthesis

Journal Title: Journal of Materials Science: Materials in Electronics
Year Published: 2017

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.