Single Crystalline Trigonal Selenium Nanotubes and Nanowires Synthesized by Sonochemical Process

摘要: One-dimensional (1D) nanostructures of trigonal selenium (t-Se) were synthesized by the reduction H2SeO3 in different solvents with a sonochemical method. The 1D structure t-Se was formed anisotropic growth crystalline, and morphology products highly depends on reaction conditions including ultrasonic mode (e.g., frequency, power, time), aging time, solvent. Single crystalline nanotubes diameters less than 200 nm nanowires 20−50 have been synthesized. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), high-resolution TEM (HRTEM), energy-dispersive spectrometry (EDS), Raman spectra used to characterize products. formation process investigated. A sonication-induced directional mechanism proposed for nanotubes. further tubes solution leads collapse tub...