کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6611107 | 459559 | 2015 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High Energy Density Asymmetric Supercapacitors From Mesoporous NiCo2S4 Nanosheets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
High-purity NiCo2S4 mesoporous nanosheets prepared through utilizing CS2 as novel sulfur source were fabricated as advanced electrode for electrochemical supercapacitors. Well-defined X-ray diffraction pattern, high specific surface areas and suitable pore size distribution (2â¼6 nm) were observed for the as-obtained NiCo2S4 sample, demonstrating remarkable electrochemical performances resulting from the porous feature of NiCo2S4 nanosheets that increase the amount of electroactive sites and facilitate the electrolyte penetration. The as-assembled asymmetric supercapacitor (ASC) exhibits a high energy density of 25.5 Wh kgâ1 at a power density of 334 W kgâ1 and still remains an impressive energy density of 10.8 Wh kgâ1 at a high power density of 8 kW kgâ1. The outstanding performance of this ASC device will undoubtedly make the mesoporous NiCo2S4 nanosheets attractive for high-performance electrode materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 174, 20 August 2015, Pages 238-245
Journal: Electrochimica Acta - Volume 174, 20 August 2015, Pages 238-245
نویسندگان
Zhibin Wu, Xuli Pu, Xiaobo Ji, Yirong Zhu, Mingjun Jing, Qiyuan Chen, Feipeng Jiao,