کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460386 | 1516194 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of hierarchical Co3O4@NiCo2O4 core-shell nanosheets as electrode materials for supercapacitor application
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Construction of core-shell heterostructures with multifunctionalities has been regarded as promising materials to improve the supercapacitor performances for single metal oxide. In our work, hierarchical Co3O4@NiCo2O4 core-shell nanosheets are successfully fabricated on Ni foam for supercapacitors. The Co3O4@NiCo2O4 electrode demonstrates excellent supercapacitor performances with the areal capacitance of 1.33Â F/cm2 at 3Â mA/cm2, the specific capacitance of 1330Â F/g at 3Â mA/cm2 and superior cycling stability of â¼100.7% after 5000 cycles. The excellent electrochemical properties for the Co3O4@NiCo2O4 hybrid composites can be ascribed to the unique core-shell nanostructures as well as the synergistic effect of Co3O4 and NiCo2O4. The as-prepared Co3O4@NiCo2O4 hybrid composites with enhanced performances could be considered as a promising electrode material for high-performance supercapacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 700, 5 April 2017, Pages 247-251
Journal: Journal of Alloys and Compounds - Volume 700, 5 April 2017, Pages 247-251
نویسندگان
Kaibing Xu, Xiaojun Yang, Jianmao Yang, Junqing Hu,