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张敏刚
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期刊论文
Preparation and characterization of oriented silica nanowires
Solid State Communications 128(2003)287-290，-0001，（）：
Large-scale of oriented closely packed silica nanowire bunches have been synthesized by using large size (1-10mm in diameter), low melting point tin droplets as catalyst on silicon wafers at 980℃. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses show that the amorphous silica nanowires have lengths of 50-100mm and diameters of 100-200nm. Unlike any previous observed results using high melting point metal (such as gold and iron) as catalyst, the Sn catalyst growth exhibits many interesting phenomena. Each Sn ball can simultaneously catalyze the growth of many silica nanowires, which is quite different from the conventional vapor-liquid-solid process.
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