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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Sol-gel synthesis and characterization of nanocrystalline ZnO powders
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Sol-gel synthesis and characterization of nanocrystalline ZnO powders

机译：纳米ZnO粉的溶胶-凝胶合成与表征

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摘要

Nanocrystalline zinc oxide (ZnO) powders were prepared by fast hydrolysis of zinc 2-ethylhexanoate dissolved in 2-propanol, adding a tetramethylammonium (TMAH) aqueous solution. XRD showed an average value of 25-35 nm for the basal diameter of supposed cylinder (prism)-shaped crystallites, whereas the height of these crystallites was 35 45 nm. TEM showed that the size of the majority of ZnO particles varied between 20 and 50 nm, thus indicating that particle and crystallite sizes in ZnO powders were approximately equal. The size of ZnO particles did not change significantly for different amounts of zinc 2-ethylhexanoate in the precipitation systems investigated. Raman spectra of ZnO particles were interpreted taking into account the nanosize effect.
机译：通过将2-乙基己酸锌溶解在2-丙醇中并加入四甲基铵（TMAH）水溶液进行快速水解来制备纳米晶状氧化锌（ZnO）粉末。对于假定的圆柱（棱镜）形微晶的基本直径，XRD显示的平均值为25-35 nm，而这些微晶的高度为35 45 nm。 TEM显示大多数ZnO颗粒的尺寸在20至50 nm之间变化，因此表明ZnO粉末中的颗粒和微晶尺寸大致相等。在所研究的沉淀系统中，不同量的2-乙基己酸锌对ZnO颗粒的尺寸影响不大。考虑到纳米尺寸的影响，解释了ZnO颗粒的拉曼光谱。

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