O484．1 2005010443 热退火对ZnO薄膜表面形貌与椭偏特性的影响=Thermal annealing effect on characteristics of surface morphology and ellipsometric of zinc oxide film[刊,中]／刘磁辉(中国科学技术大学物理系．安徽,合肥(23002...O484．1 2005010443 热退火对ZnO薄膜表面形貌与椭偏特性的影响=Thermal annealing effect on characteristics of surface morphology and ellipsometric of zinc oxide film[刊,中]／刘磁辉(中国科学技术大学物理系．安徽,合肥(230026))．林碧霞…∥发光学报．-2004,25(2)．-151-155 利用原子力显微镜(AFM)和椭偏仪对溅射制备的硅基ZnO薄膜的热退火表面形貌与椭偏特性进行了研究。展开更多
A dialysis-based method was developed to remove Na ions in fullerol preparation by a conventional synthetic route. Fullerol was synthesized using a typical two-phase reaction in the presence of tetrabutylammonium hydr...A dialysis-based method was developed to remove Na ions in fullerol preparation by a conventional synthetic route. Fullerol was synthesized using a typical two-phase reaction in the presence of tetrabutylammonium hydroxide. Its structure was confirmed by UV spectra, Fourier transform infrared spectroscopy spectra, 1 H nuclear magnetic resonance, and matrix-assisted laser desorption/ionization time of flight mass spectra. The content of Na element was determined by inductive coupled plasma atomic emission spectroscopy. The mass content of Na in the product obtained from the conventional route was about 10%, and it could be almost completely eliminated by dialysis with a membrane of molecular weight cut-off (MWCO) 8-15 kDa. The yield of fullerol by the dialysis method was slightly higher than by the conventional route. These results indicate that dialysis may have a potential application for fullerol preparation.展开更多
文摘O484．1 2005010443 热退火对ZnO薄膜表面形貌与椭偏特性的影响=Thermal annealing effect on characteristics of surface morphology and ellipsometric of zinc oxide film[刊,中]／刘磁辉(中国科学技术大学物理系．安徽,合肥(230026))．林碧霞…∥发光学报．-2004,25(2)．-151-155 利用原子力显微镜(AFM)和椭偏仪对溅射制备的硅基ZnO薄膜的热退火表面形貌与椭偏特性进行了研究。
基金Supported by the National Natural Science Foundation of China （20672012） the Natural Science Foundation of Beijing（20822020）
文摘A dialysis-based method was developed to remove Na ions in fullerol preparation by a conventional synthetic route. Fullerol was synthesized using a typical two-phase reaction in the presence of tetrabutylammonium hydroxide. Its structure was confirmed by UV spectra, Fourier transform infrared spectroscopy spectra, 1 H nuclear magnetic resonance, and matrix-assisted laser desorption/ionization time of flight mass spectra. The content of Na element was determined by inductive coupled plasma atomic emission spectroscopy. The mass content of Na in the product obtained from the conventional route was about 10%, and it could be almost completely eliminated by dialysis with a membrane of molecular weight cut-off (MWCO) 8-15 kDa. The yield of fullerol by the dialysis method was slightly higher than by the conventional route. These results indicate that dialysis may have a potential application for fullerol preparation.
