کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
189362 | 459678 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polystyrene-based carbon spheres as electrode for electrochemical capacitors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Polystyrene-based carbon spheres as electrode for electrochemical capacitors Polystyrene-based carbon spheres as electrode for electrochemical capacitors](/preview/png/189362.png)
چکیده انگلیسی
A series of carbon spheres with various porous texture parameters were prepared from polystyrene-based macroreticular resin spheres by carbonization and activation. The as-prepared carbon spheres had a maximum specific surface area of 996 m2 g−1, total pore volume of 1.34 cm3 g−1 and average pore size of 5.39 nm. Moreover, these carbon spheres showed a mesopore size distributed mainly in about 40 nm. A high specific capacitance of 153 F g−1 for carbon sphere by carbonization, 164 F g−1 for carbon sphere by activation for 1 h and 182 F g−1 for carbon sphere by activation for 2 h can be obtained. Moreover, a specific energy between 2.3 and 5.1 Wh kg−1 for these carbon spheres can be obtained in 6 mol L−1 KOH electrolyte.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 59, 1 January 2012, Pages 424–428
Journal: Electrochimica Acta - Volume 59, 1 January 2012, Pages 424–428
نویسندگان
Guohua Sun, Jian Wang, Kaixi Li, Yanqiu Li, Lijing Xie,