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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Synthesis of hierarchical Co3O4@NiCo2O4 core-shell nanosheets as electrode materials for supercapacitor application
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 1.33 F/cm2 at 3 mA/cm2, the specific capacitance of 1330 F/g at 3 mA/cm2 and superior cycling stability of ∼100.7% 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
نویسندگان
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