کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5460518 1516195 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-supported binder-free carbon fibers/MnO2 electrodes derived from disposable bamboo chopsticks for high-performance supercapacitors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Self-supported binder-free carbon fibers/MnO2 electrodes derived from disposable bamboo chopsticks for high-performance supercapacitors
چکیده انگلیسی
The increasing market growth of hybrid vehicles requires not only improvement on supercapacitor performance, but also cheap, abundant and sustainable material for supercapacitor fabrication. The present study demonstrated a novel strategy to convert used disposable bamboo chopsticks into uniform carbon fibers, and subsequently manganese dioxide (MnO2) was conformably grown on each fiber to form a carbon fiber/MnO2 composite. When it used as a self-supported binder-free electrode for supercapacitors, it delivered a superior mechanical stability, excellent rate capability, high specific capacitance of 375 F g−1 at the current density of 1 A g−1 and an increase specific capacitance was found after 5000 cycles interestingly. Moreover, the symmetric supercapacitor comprised of CFS/MnO2 electrodes presents a maximum energy density of 11 Wh kg−1 and a maximum power density of 17.4 kW kg−1. In addition, this approach presents a scalable, low-cost and sustainable route to transform chopsticks waste into carbon fibers to make electrodes for supercapacitors and lithium-ion capacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 699, 30 March 2017, Pages 126-135
نویسندگان
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