کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
145280 456336 2016 11 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Super long-life all solid-state asymmetric supercapacitor based on NiO nanosheets and α-Fe2O3 nanorods
ترجمه فارسی عنوان
ابرخازن نامتقارن حالت جامد چرخه عمر طولانی بر اساس نانوصفحات NiO و نانومیله های α-Fe2O3
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کلمات کلیدی
ابرخازن نامتقارن حالت جامد کل؛ نانوصفحات NiO ؛ نانومیله α-Fe2O3 ؛ کم هزینه؛ چرخه عمر طولانی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• A novel NiO//α-Fe2O3 all solid-state asymmetric supercapacitor has been constructed.
• It demonstrates high energy/power densities (12.4 W h kg−1 and 951 W kg−1).
• The device exhibits a long cycle life with 85% capacity retention after 10,000 cycles.
• The device with a lightweight and low-cost materials is fabricated.

Through a facile hydrothermal method at a mild temperature and a calcination process, we report the fabrication about the NiO nanosheets and α-Fe2O3 nanorods using nickel foam (NF) and carbon cloth (CC) as substrates. Analysis of data obtained from the electrochemical experiments show that NiO electrode possesses large areal capacitance (1.3 F cm−2 at 4 mA cm−2). Also, α-Fe2O3 electrode delivers areal capacitance of 500 mF cm−2 at current density of 4 mA cm−2. Therefore, a high-performance all solid-state asymmetric supercapacitor (ASC) based on 3D sheet-like hierarchical NiO and α-Fe2O3 nanorods are designed and fabricated. New ASC can be cycled reversibly in a high voltage region ranging from 0 to 1.25 V with high energy densities of 12.4 W h kg−1 (power is 951 W kg−1) based on the total mass of active materials. Furthermore, the obtained data indicate that the fabricated NiO//α-Fe2O3 based supercapacitor device has a great cycle performance with 85% capacitance retention under 10,000 cycles. This work may help to open up new areas for fabrication of lightweight and low-cost materials for energy storage systems.

A novel all solid-state asymmetric supercapacitor has been constructed with NiO nanosheets and α-Fe2O3 nanorods. It can be cycled reversibly in a high voltage region and demonstrates high energy/power densities (12.4 W h kg−1 and 951 W kg−1). Furthermore, NiO//α-Fe2O3 supercapacitor device exhibits a long cycle life with 85% capacitance retention after 10,000 cycles. The electrodes with superior capacitor characteristic might provide an efficient strategy to fabricate lightweight and low-cost materials in energy storage systems.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 306, 15 December 2016, Pages 193–203
نویسندگان
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