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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
High Energy Density Asymmetric Supercapacitors From Mesoporous NiCo2S4 Nanosheets
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 (2∼6 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 kg−1 at a power density of 334 W kg−1 and still remains an impressive energy density of 10.8 Wh kg−1 at a high power density of 8 kW kg−1. 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
نویسندگان
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