کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146813 1497368 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single-step growth of pyramidally textured NiO nanostructures with improved supercapacitive properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Single-step growth of pyramidally textured NiO nanostructures with improved supercapacitive properties
چکیده انگلیسی
Here, we report the fabrication of one step NiO nanopyramid thin film as a binder-free electrode with improved electrochemical properties using a reactive magnetron sputtering. The crystalline nature, surface morphology and chemical composition of the as deposited NiO thin films were analyzed by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscopy (FE-SEM), Atomic force microscopy (AFM) and X-ray Photoluminescence spectroscopy (XPS). The electrochemical measurements were carried out using cyclic voltammetry, electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge (GCD) techniques. NiO nanopyramid nanostructures electrode exhibited high specific capacitance (325 F g−1 at 0.4 mA cm−2 in 1 M KOH), high efficient density (19.66 Wh kg−1) and power density (2.15 kW kg−1) with excellent cycling stability (91.4% retention after 1000 cycles).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 9, 2 March 2017, Pages 6080-6087
نویسندگان
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