کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10142113 | 1646091 | 2019 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Co/CoO@N-C nanocomposites as high-performance anodes for lithium-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Heterogeneous element doping carbon-coated transition metal oxides has been reported as an effective way to increase conductivity and accommodate volume changes during the charge/discharge of lithium-ion batteries thereby improving structural stability and cycle performance. Herein, we have successfully synthesized Co/CoO@N-C nanocomposites using polydopamine as a source of carbon and nitrogen via a simple one-step method. Owing to its desirable structural features, the as-synthesized Co/CoO@N-C nanocomposite anode manifests a greatly improved initial capacity of 1541â¯mAh gâ1 and retains a high reversible value of 1115â¯mAh gâ1â¯at a current density of 200â¯mAâ¯gâ1 after 125 cycles. The morphology and physicochemical properties of the Co/CoO@N-C nanocomposites were characterized to provide insights into the promotional roles of nitrogen-doped carbon matrix and CoO loaded nanoparticles. The results demonstrate the potential of the Co/CoO@N-C nanocomposite as a promising anode material for lithium-ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 771, 15 January 2019, Pages 290-296
Journal: Journal of Alloys and Compounds - Volume 771, 15 January 2019, Pages 290-296
نویسندگان
Ming Sun, Hui Zhang, Yi-Fan Wang, Wei-Liang Liu, Man-Man Ren, Fan-Gong Kong, Shou-Juan Wang, Xin-Qiang Wang, Xiu-Lan Duan, Shou-Zhe Ge,