title: Spontaneous ring-like self-assembly of BaF2 nanoparticles.
abstract: Self-assembly of BaF2 nanoparticles was described. BaF2 nanoparticles were prepared by microemulsion technology. The self-assembly of the particles is spontaneous without coating reagent on the surface or external force being applied during the procedure of sample preparation. XRD examination and ICP data showed the phase purity of the final product; FTIR spectroscopy confirmed that there was no organic species leaved in the product. By depositing one drop of colloid solution containing BaF2 particles on the TEM grid directly, we can get the ring-like self-assembly with larger particles dispersing peripherally to form a ring and smaller particles inside this ring forming circles.
authors.affiliation: Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
authors.forename: Hongzhou
authors.initials: H
authors.lastname: Lian
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.forename: Zeren
authors.initials: Z
authors.lastname: Ye
authors.forename: Chunshan
authors.initials: C
authors.lastname: Shi
mesh_terms: D017609:Barium Compounds / Q000032:analysis / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004655:Emulsions / Q000032:analysis / Q000737:chemistry*; D005459:Fluorides / Q000032:analysis / Q000737:chemistry*; D046911:Macromolecular Substances / Q000032:analysis / Q000737:chemistry; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000032:analysis / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D017609:Barium Compounds; D004655:Emulsions; D046911:Macromolecular Substances; C055150:barium fluoride; D005459:Fluorides