کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11000500 | 1424071 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-assembly of biomass microfibers into 3D layer-stacking hierarchical porous carbon for high performance supercapacitors
ترجمه فارسی عنوان
خودآموزی میکرو فیبرهای زیست توده به لایه یابی سه بعدی کربن متخلخل سلسله مراتبی برای سازندگان باکیفیت بالا
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کلمات کلیدی
مخزن سوپر زیست توده، خودمجموعه، لایه بندی کربن متخلخل سلسله مراتبی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Biomass served as a promising and renewable carbon source of porous activated carbon for supercapacitors is widely studied due to their abundance, easy carbonization and low cost. However, carbonized biomass, much of which possess 1-dimensional fiber structure, tends to retain its original morphologies and structures after carbonization treatment, thus how to control synthesis process to obtain 3-dimensional porous carbon is a significant research direction. Herein, we provide a facile one-step carbonization/activation of tremella dipped with KOH method to achieve the self-assembly of its wirelike composition into 3-dimensional hierarchical porous carbon. As-prepared tremella-derived layer-stacking hierarchical porous carbon exhibits an outstanding specific capacitance of 299.3â¯Fâ¯gâ1 at a current density of 0.5â¯Aâ¯gâ1 in two-electrode system, high capacitance retention of 250.3â¯Fâ¯gâ1 at a high current density of 20â¯Aâ¯gâ1, and good cycling stability in 6â¯M KOH electrolyte owing to its extraordinary hierarchical porous microstructure, high specific surface area and good electrical conductivity. To enlarge the voltage window, this material based symmetric supercapacitors are assembled using organic Et4NBF4 as electrolyte, which offer an energy density of 42.4â¯Wh kgâ1 at a power density of 760â¯Wâ¯kgâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 286, 1 October 2018, Pages 264-270
Journal: Electrochimica Acta - Volume 286, 1 October 2018, Pages 264-270
نویسندگان
Duo Chen, La Li, Yunlong Xi, Junzhi Li, Mengjie Lu, Junming Cao, Wei Han,