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Intense photoluminescence and movement of optical absorption edge in alumina aerogels

Xianting SUN , Lianzeng YAO , Chimei MO , Gang SHI , Weili CAI , Yimin ZHANG , Lide ZHANG

Alumina aerogels with high porosity of nanometer size were prepared from Al, n-butanol and ethyl acetoacetate by the sol-gel route and the Na supercritical extraction drying technique. Optical experiment results showed that for alumina aerogels after annealing at 500 degrees C for 4 h one intense bl...

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Single Crystal Fe Nanowire Arrays Encapsulated by SiO2 Nanotubes

Qing LIN , Lianzeng YAO , Guowei JIANG , Chuangui JIN , Weifeng LIU , Weili CAI , Zhen YAO

材料科学技术（英文）

Aligned silicon dioxide nanotubes with diameter of 60~70 nm were synthesized inside the nanoholes of an anodic Al membrane (AAM) template by pressure impregnating the AAM pores with the SiO¬2 sol. The SiO¬2 nanotubes with different wall thickness were produced by repeating the process. Using the sec...

关键词: Template , null , null , null

Synthesis, microstructure and optical absorption of coatings with doping of nano-TiO2 for protection against ultraviolet irradiation

Ye ZHANG , Lide ZHANG , Chimei MO , Yuanhong LI , Lianzeng YAO , Weili CAI

材料科学技术（英文）

The synthesis of dispersions of MMA (methylmethacrylate) with different concentrations of oleic acid coated nano-TiO2 particles was performed by hydrolysis of TiCl4 in the mixture solutions of MMA, oleic acid and H2O with various concentrations. When MMA :oleic acid : H2O : TiCl4 1.00 : 0.064 : 0.01...

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Preparation and Photoluminescence of Ordered ZnO Nanowire Arrays

Mingzai WU , Lianzeng YAO , Weili CAI , Guowei JIANG , Xiaoguang LI , Zhen YAO

材料科学技术（英文）

Ordered ZnO nanowire arrays embedded in anodic aluminum oxide (AAO) membranes were fabricated by electrochemical deposition of Zn(NO3)2+H3BO3 solution in a boiling bath. Scanning electron microscope (SEM) and transmission electron microscope (TEM) observation results show that the polycrystalline Zn...

关键词: Nanowires , null , null

Negative temperature coefficient of resistivity in bulk nanostructured Ag

Yushuang LIU , Chimei MO , Weili CAI

材料科学技术（英文）

The change of the temperature coefficient of resistivity (cr) with the particle size, d(p), and the grain size, d(c), in the nanostructured Ag bulk samples was investigated. d(p) and d(c) were controlled by heating the nano-Ag powders over the temperature range from 393 to 453 K. The electrical resi...

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材料期刊网

Intense photoluminescence and movement of optical absorption edge in alumina aerogels

Single Crystal Fe Nanowire Arrays Encapsulated by SiO2 Nanotubes

Synthesis, microstructure and optical absorption of coatings with doping of nano-TiO2 for protection against ultraviolet irradiation

Preparation and Photoluminescence of Ordered ZnO Nanowire Arrays

Negative temperature coefficient of resistivity in bulk nanostructured Ag

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