Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Cation-Induced Coiling of Vanadium Pentoxide Nanobelts | Nanoscale Res Lett 2010 5 1619-1626 DOI s11671-010-9685-z NANO EXPRESS Cation-Induced Coiling of Vanadium Pentoxide Nanobelts Jun Liu Dongfeng Xue Received 8 June 2010 Accepted 1 July 2010 Published online 11 July 2010 The Author s 2010. This article is published with open access at Abstract Single-crystalline V2O5-xH2O nanorings and microloops were chemically assembled via an ion-induced chemical spinning route in the designed hydrothermal system. The morphology and structure of products were investigated by means of scanning electron microscopy SEM and transmission electron microscopy TEM . X-ray powder diffraction XRD measurement energy-dispersive X-ray spectroscopy EDS microanalysis and thermal gravimetric analysis TGA revealed that the composition of nanorings and microloops is V2O5-1-1H2O. For these oxide nanorings and microloops the cation-induced coiling growth mechanism of vanadium pentoxide nanobelts has been proposed on the basis of crystallographic structure of vanadium pentoxide. Our proposed chemical spinning process and the rational solution-phase synthesis route can also be extended to prepare novel 1D materials with layered or more complex structures. Keywords V2O5-xH2O Nanoring Ion-induced chemical spinning route Morphology Cation-induced coiling Vanadium pentoxide nanobelts Solution-phase synthesis route Introduction Control over the composition shape spatial location and or geometrical configuration of functional nanostructures is J. Liu D. Xue State Key Laboratory of Fine Chemicals Department of Materials Science and Chemical Engineering School of Chemical Engineering Dalian University of Technology 116012 Dalian People s Republic of China e-mail dfxue@ of importance for nearly all practical applications of these materials 1-6 . One-dimensional 1D nanostructures such as nanorods nanowires nanobelts and nanotubes with high aspect ratios have been attracting much attention lately due to their high .
