Catalysed growth of novel aluminium oxide nanorods
Catalysed growth of novel aluminium oxide nanorods
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DOI：
10.1007/s00339-003-2109-5
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发表时间：
2003-06
期刊：
影响因子：
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通讯作者：
Yizheng Jin;Yanqiu Zhu;K. Brigatti;H. Kroto;D. Walton
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文献类型：
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作者：
Yizheng Jin;Yanqiu Zhu;K. Brigatti;H. Kroto;D. Walton
微米级珊瑚状氧化铝结构是通过在石英舟中加热 AlB2 和 Co 粉末的混合物而产生的。 N2 下 1050 °C。在丙酮中超声处理后，结构分解成细长的单晶氧化铝纳米棒，直径范围为 20 至 200 nm，长度可达 5 μm。单个钴颗粒经常附着在纳米棒尖端上。气-液-固（V-L-S）机制似乎是氧化铝纳米棒生长的原因。
Micron-scale coral-like aluminium oxide structures have been generated by heating a mixture of AlB2and Co powders in a quartz boat at ca. 1050 °C under N2. Upon sonication in acetone, the structures break down into elongated single-crystal aluminium oxide nanorods ranging from 20 to 200 nm in diameter and up to 5 μm in length. Single Co particles are often found attached to nanorod tips. A vapour–liquid–solid (V–L–S) mechanism appears to be responsible for the aluminium oxide nanorod growth.