مقاله Anionic and Cationic Surfactants in Ammonia Gas-Mediated Synthesis of ?-Ni(OH)2 and NiO Nanostructures

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مقاله Anionic and Cationic Surfactants in Ammonia Gas-Mediated Synthesis of ?-Ni(OH)2 and NiO Nanostructures دارای 13 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

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توجه : در صورت  مشاهده  بهم ريختگي احتمالي در متون زير ،دليل ان کپي کردن اين مطالب از داخل فایل ورد مي باشد و در فايل اصلي مقاله Anionic and Cationic Surfactants in Ammonia Gas-Mediated Synthesis of ?-Ni(OH)2 and NiO Nanostructures،به هيچ وجه بهم ريختگي وجود ندارد


بخشی از متن مقاله Anionic and Cationic Surfactants in Ammonia Gas-Mediated Synthesis of ?-Ni(OH)2 and NiO Nanostructures :


سال انتشار : 2016

تعداد صفحات :13

Up to now, researchers have proposed several synthesis methods for the preparation of β-nickel(II) hydroxide nanostructures. Most of these approaches contain harsh synthetic conditions such as multi-step processes, high temperatures and long reaction time. In this work, a novel, facile and low cost method is introduced to produce of β-Ni(OH)2 nanostructures using the gas-solution precipitation from nickel(II) sulfate solution in the presence of anionic or cationic surfactant upon exposure to ammonia gas at room temperature. Herein, no other additive is needed and the method is suited for large-scale preparation. The structural characterizations were carefully investigated by the powder X-ray diffraction technique and Fourier transformation infrared spectroscopy. Further, the scanning electron microscopy results showed the important roles of the sodium dodecylsulfate and cetyltrimethylammonium bromide on the morphology and size of the products. The calcination process of hydroxide samples was also conducted to synthesize nickel(II) oxide nanostructures.

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