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Synthesis of β-SiC/SiO_2 core-shell nanowires with the assistance of cerium oxide

Synthesis of β-SiC/SiO_2 core-shell nanowires with the assistance of cerium oxide
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摘要 The β-SiC/SiO2 core-shell nanowires with the 'stem-and-node' structure were synthesized in the presence of cerium oxide by the carbothermal reduction of the starch-SiO2 hybrids gel.The samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM) and energy-dispersed X-ray(EDX).The results showed that the nanowires consisted of a 20-35 nm diameter crystalline β-SiC core wrapped with a 2-5 n... The β-SiC/SiO2 core-shell nanowires with the 'stem-and-node' structure were synthesized in the presence of cerium oxide by the carbothermal reduction of the starch-SiO2 hybrids gel.The samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM) and energy-dispersed X-ray(EDX).The results showed that the nanowires consisted of a 20-35 nm diameter crystalline β-SiC core wrapped with a 2-5 n...
作者 于伟鹏 郑瑛 杨娥 邱健斌 兰瑞芳
机构地区 College of Chemistry and Materials Science
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2010年第3期365-368,共4页 稀土学报（英文版）
基金 supported by the National Key Technology R&D Program (2007BEA08B01) the Natural Science Foundation of Fujian Province of China (E0710004) Joint Research Program of Fuzhou University (DH-548)
关键词 β-SiC/SiO2 core-shell nanowires carbothermal reduction cerium oxide vapor-liquid-solid（VLS） mechanisms rare earths β-SiC/SiO2 core-shell nanowires carbothermal reduction cerium oxide vapor-liquid-solid（VLS） mechanisms rare earths
分类号 TB383.1 [一般工业技术—材料科学与工程]
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参考文献22

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Journal of Rare Earths
2010年 第3期

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