کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
186514 459614 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synergistic effect of Fe3O4/reduced graphene oxide nanocomposites for supercapacitors with good cycling life
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synergistic effect of Fe3O4/reduced graphene oxide nanocomposites for supercapacitors with good cycling life
چکیده انگلیسی


• Fe3O4/rGO composites were prepared through a facile hydrolysis process.
• The composites exhibit specific capacitance of 350.6 F g−1 at 1 mV s−1 and 157.6 F g−1 at 100 mV s−1.
• The composites show much higher specific capacitances than either pure rGO or pure Fe3O4.
• The good electrochemical performance can be attributed to the positive synergistic effect.

Fe3O4/reduced graphene oxide (rGO) composites were prepared through a facile hydrolysis route and subsequent annealing process and used as the electroactive materials for supercapacitors. The as-prepared Fe3O4/rGO composites exhibit much higher specific capacitances than either pure rGO or pure Fe3O4, meanwhile, the electrochemical performance of Fe3O4/rGO composites with different amount of RGO has been compared. The optimized Fe3O4/rGO composites (FG-0.8) exhibit the highest specific capacitance of 350.6 F g−1 at 1 mV s−1, 157.6 F g−1 of the specific capacitance can still be retained when the scan rate increases 100 times to 100 mV s−1, indicating a good rate capability. These Fe3O4/rGO composites also show excellent cycling performance without any decrease of specific capacitance after 10,000 cycles. These fascinating performances can be attributed to the positive synergistic effect between Fe3O4 and rGO.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 114, 30 December 2013, Pages 674–680
نویسندگان
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