کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8955666 | 1646096 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carbon-coated CoS@rGO anode material with enhanced cyclic stability for sodium storage
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Carbon-coated cobalt sulfide@reduced graphene oxide (CoS@rGO@C) composite was innovatively synthesized by a simple solvothermal reaction and subsequent carbon coating process for use as the anode material in sodium-ion batteries (SIBs). In this composite structure, the rGO network and extra outer carbon coating worked synergically to achieve excellent electrode architecture stability upon long-term cycling. Specifically, the CoS@rGO@C composite anode demonstrated superior reversible capacity (706â¯mAh·gâ1 at 100â¯mA·gâ1 at the 1st cycle), high rate capability (374â¯mAh·gâ1 at 1.6â¯A·gâ1), and remarkably stable cycling performance (80% capacity preservation for up to 100 cycles) based on the synergistic action of rGO and carbon coating on CoS. In addition to improving the electrochemical performance of CoS anodes, this composite material strategy can be conveniently adapted to other metal-based anode designs to improve their cycling stability and promote their application in energy storage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 233, 15 December 2018, Pages 158-161
Journal: Materials Letters - Volume 233, 15 December 2018, Pages 158-161
نویسندگان
Hao Jia, Mahmut Dirican, Chen Chen, Pei Zhu, Chaoyi Yan, Xia Dong, Zhuang Du, Jiansheng Guo, Jiasheng Wang, Fangcheng Tang, Jinsong Tao, Xiangwu Zhang,