Abstract
A detailed study of the morphological evolution of 2-dimensional LaF3 nanocrystals under the thermal treatment in air was performed. XRD, SEM, TEM and 19F MAS NMR techniques were used to characterize the aggregation process of nanocrystals. 19F NMR relaxometry and diffusometry were applied to investigate changes in the dynamics of the fluorine ions. Heating of nano-structured LaF3 above 800 K led to crystallite growth accompanied by a deceleration of ionic motion, as seen from the NMR relaxation and diffusion data. The effect is dependent on the annealing temperature, and its enhancement above 1000 K causes the morphology and dynamics of the 2D nanocrystals to approach that of the bulk material. 19F MAS NMR confirms that the local structure of annealed 2D LaF3 is identical to that of the bulk material.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
