One-dimensional SnF2 single crystals in the inner channels of single-wall carbon nanotubes: I. Preparation and basic characterization

One-dimensional (1D) SnF2 single crystals have been obtained by crystallization from melt in the inner channels of single-wall carbon nanotubes (SWCNTs). SWCNTs with an inner diameter of 1.02-1.4 nm, synthesized by electric-arc discharge and chemically purified, were used for incorporation. The synthesized 1D SnF2 single crystal-SWCNT composites are basically characterized by X-ray diffraction, energy-dispersive analysis, electron microscopy, and chemical analysis. The characteristic motifs of tin cation distribution in the SWCNT inner channel confirm the formation of SnF2 single crystals.