کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6605161 | 1424099 | 2017 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hierarchical porous carbon with network morphology derived from natural leaf for superior aqueous symmetrical supercapacitors
ترجمه فارسی عنوان
کربن متخلخل سلسله مراتبی با مورفولوژی شبکه مشتق شده از برگ های طبیعی برای ابررسانای متخلخل ابررسانای آب بالا
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Development of efficient, low-cost and high-performance carbon materials as the electrodes is of significance for supercapacitors. Here we report a new class of hierarchical porous carbon with a three-dimensional network morphology of interconnected nanoparticle units prepared by using natural Indicalamus leaves and polytetrafluoroethylene as carbon precursor and silica-in-situ-remover, respectively. This protocol allows for successful post-treatment-free synthesis of biomass-based hierarchical porous carbon with specific surface area as high as 1801Â m2/g without any extra activation process. Accordingly, when used as the electrodes of aqueous symmetrical supercapacitor, the as-prepared carbon material demonstrates superior capacitive behaviors, including high capacitances of 326 and 211Â F/g in 1.0-V and 1.8-V supercapacitors, respectively, high energy density of 23.7Â Wh/kg at power density of 224.5Â W/kg, and excellent cycling stability. With these extremely attractive capacitive properties, this class of hierarchical porous carbon outperforms many typical state-of-the-art carbonaceous electrodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 258, 20 December 2017, Pages 504-511
Journal: Electrochimica Acta - Volume 258, 20 December 2017, Pages 504-511
نویسندگان
Jianyu Huang, Lidong Chen, Hanwu Dong, Yuan Zeng, Hang Hu, Mingtao Zheng, Yingliang Liu, Yong Xiao, Yeru Liang,