title: Synthesis and characterization of Dy(OH)3 and Dy2O3 nanotubes.
abstract: Dy(OH)3 nanotubes with high aspect ratios of up to about 50 were synthesized in the presence of poly(ethylene glycol) via a hydrothermal method. Poly(ethylene glycol), as a nonionic surfactant, plays an important role in the formation of morphologies. Subsequent thermal treatment of Dy(OH)3 nanotube precursors at 450 degrees C for 6 h led to Dy2O3 nanotubes, during which the precursor tubular morphology was maintained. Selected-area electron diffraction and high-resolution transmission electron microscopy reveal the single-crystal nature of the Dy(OH)3 and Dy2O3 nanotubes. The morphologies and crystalline structure of the as-obtained products were characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, respectively. By this method, we can obtain a mass of products.
authors.affiliation: Institute of Polyoxometalate Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.
authors.forename: Caixin
authors.initials: C
authors.lastname: Guo
authors.forename: Minhua
authors.initials: M
authors.lastname: Cao
authors.forename: Changwen
authors.initials: C
authors.lastname: Hu
mesh_terms: D003460:Crystallization; D004419:Dysprosium / Q000737:chemistry*; D006358:Hot Temperature; D006878:Hydroxides / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D006878:Hydroxides; D010087:Oxides; D004419:Dysprosium; D011092:Polyethylene Glycols; C031356:hydroxide ion