کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6602046 | 1424074 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Honeycomb-like Ni3S2 nanosheet arrays for high-performance hybrid supercapacitors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Supercapacitors have attracted great attention as advanced energy storage devices. However, the low energy density and high cost of electrode materials are the downsides for their practical applications. Here, we introduce a facile and low-cost strategy to develop honeycomb-like Ni3S2 nanosheet arrays (NSAs) as a redox-type electrode for aqueous hybrid supercapacitors (HSCs). Owing to the porous structure of NSAs, the Ni3S2 electrode can show excellent electrochemical performance in 2â¯M KOH aqueous electrolyte. A high specific capacity of 151.2â¯mAhâ¯gâ1â¯has been achieved at the current density of 3â¯Aâ¯gâ1. To demonstrate their further applications, HSCs have been assembled with activated carbon (AC) as negative electrode and the assembled devices can successfully work within a large voltage range of 0-1.6â¯V and deliver a maximum energy density of 35.2â¯Wh kgâ1 at the power density of 491â¯Wâ¯kgâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 283, 1 September 2018, Pages 737-743
Journal: Electrochimica Acta - Volume 283, 1 September 2018, Pages 737-743
نویسندگان
Wenbin Fu, Yuanyuan Zhao, Junfeng Mei, Fujia Wang, Weihua Han, Fangcong Wang, Erqing Xie,