کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7211845 1469335 2018 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile preparation of reduced graphene oxide/copper sulfide composite as electrode materials for supercapacitors with high energy density
ترجمه فارسی عنوان
آماده سازی چسبناک کمپلکس گرافن اکسید گرافن / مس سولفید به عنوان مواد الکترود برای ابررایانه ها با تراکم انرژی بالا
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Recently, copper sulfide (CuS) quite arouses researchers' interest due to its high theoretical capacity and excellent electroconductivity. However, poor cycling stability seriously limited the application in supercapacitors. In addition to the improvement of cycling performance, it is also a challenge to develop electrode materials with energy density. Herein, RGO/CuS composite is prepared successfully by solvothermal reaction methods. By the observation using FESEM and TEM, CuS microstructure displays regular and tiny nanoparticles, which are supported by RGO sheets. After the electrochemical measurements, RGO/CuS composite exhibits a maximum specific capacitance of 946 F g−1 at 10 mV s−1 and 906 F g−1 at 1 A g−1, respectively. The excellent cycling stability is also achieved and it maintains 89% retention after 5000 cycles at 5 A g−1. RGO/CuS composite also possesses high energy density of 105.6 W h kg−1 at the power density of 2.5 kW kg−1, which indicates that RGO/CuS composite has a bright future as electrode materials for supercapacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 150, 1 October 2018, Pages 60-67
نویسندگان
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