Synthesis of wide band gap nanocrystalline NiO powder via a sonochemical method

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• 作者：S. Mohseni Meybodi^a ; S.A. Hosseini^b ; M. Rezaee^c ; S.K. Sadrnezhaad^d ; D. Mohammadyani^b ; ^{d.mohammadyani@gmail.com}
• 关键词：Nickel oxide ; Sonochemistry ; Nanocrystalline powder ; Photoluminescence spectroscopy
• 刊名：Ultrasonics Sonochemistry
• 出版年：2012
• 期刊代码：81_13504177
• 类别：ph
• 出版时间：July, 2012
• 卷：19
• 期：4
• 页码：841-845
• 文件大小：566 K

摘要

A sonochemistry-based synthesis method was used to produce nanocrystalline nickel oxide powder with 鈭?0 nm average crystallite diameter from Ni(OH)₂ precursor. Ultrasound waves were applied to the primary solution to intensify the Ni(OH)₂ precipitation. Dried precipitates were calcined at 320 掳C to form nanocrystalline NiO particles. The morphology of the produced powder was characterized by transmission electron microscopy. Using sonochemical waves resulted in lowering of the size of the nickel oxide crystallites. FT-IR spectroscopy and X-ray diffraction revealed high purity well-crystallized structure of the synthesized powder. Photoluminescence spectroscopy confirmed production of a wide band-gap structure.