کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1795602 1023725 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shape- and size-controlled electrochemical synthesis of cupric oxide nanocrystals
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Shape- and size-controlled electrochemical synthesis of cupric oxide nanocrystals
چکیده انگلیسی

A simple and efficient electrochemical route was developed for the synthesis of CuO nanocrystals with different shapes using aqueous sodium nitrate electrolyte and Cu sacrificial anode in an undivided cell at a constant current mode under room temperature. The composition, shape and microstructure of the product were characterized by XRD, TEM, HRTEM and SAED. The TEM results indicated that the shape and size of CuO nanocrystals could be conveniently controlled by varying current density or electrolytic solvent. Mono-disperse and almost uniform CuO nanorods or nanospindles could be obtained at low current density, while high current density could result in the formation of irregular-shaped crystals. Compared with pure water solvent, H2O–EtOH mix-solvent is more beneficial for the formation of CuO nanorods thinner in diameter. The possible formation and growth mechanism of CuO nanocrystals via the electrochemical route was also proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 303, Issue 2, 15 May 2007, Pages 400–406
نویسندگان
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