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
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Single-step growth of pyramidally textured NiO nanostructures with improved supercapacitive properties Single-step growth of pyramidally textured NiO nanostructures with improved supercapacitive properties](/preview/png/5146813.png)
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 gâ1 at 0.4 mA cmâ2 in 1 M KOH), high efficient density (19.66 Wh kgâ1) and power density (2.15 kW kgâ1) 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
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 9, 2 March 2017, Pages 6080-6087
نویسندگان
Ashwani Kumar, Amit Sanger, Arvind Kumar, Ramesh Chandra,