Liu Jun, Xue Dongfeng
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.
Nanoscale Res Lett. 2010 Jul 11;5(10):1619-26. doi: 10.1007/s11671-010-9685-z.
Single-crystalline V(2)O(5)·xH(2)O 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 V(2)O(5)·1·1H(2)O. 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.
通过离子诱导化学纺丝路线，在设计的水热体系中化学组装出了单晶V(2)O(5)·xH(2)O纳米环和微环。采用扫描电子显微镜（SEM）和透射电子显微镜（TEM）对产物的形貌和结构进行了研究。X射线粉末衍射（XRD）测量、能量色散X射线光谱（EDS）微分析和热重分析（TGA）表明，纳米环和微环的组成是V(2)O(5)·1·1H(2)O。对于这些氧化物纳米环和微环，基于五氧化二钒的晶体结构，提出了五氧化二钒纳米带的阳离子诱导卷曲生长机制。我们提出的化学纺丝工艺和合理的溶液相合成路线也可扩展用于制备具有层状或更复杂结构的新型一维材料。
