کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7991738 | 1516144 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The origin of cycling enhanced capacity of Ni/NiO species confined on nitrogen doped carbon nanotubes for lithium-ion battery anodes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The origin of cycling enhanced capacity of Ni/NiO species confined on nitrogen doped carbon nanotubes for lithium-ion battery anodes The origin of cycling enhanced capacity of Ni/NiO species confined on nitrogen doped carbon nanotubes for lithium-ion battery anodes](/preview/png/7991738.png)
چکیده انگلیسی
We demonstrate that the confinement effect of the NiO compound can directly enhance the electrochemical performance upon cycling. Fabricating the core-shell C-coated Ni/NiO nanofibers (e.g., Ni and NiO, nitrogen doped carbon respectively) composite electrode largely increases the capacity (1332â¯mAh gâ1 vs 718â¯mAâ¯hâ¯gâ1) and improve the long-term cycling stability. The High Angle Annular Dark Field results reveal that the doped pyridine-like nitrogen shell will divide the NiO into smaller nanoparticle during the charging and discharging process. In addition, the density functional theory calculation suggests the confined nanoscale NiO(Ni) will absorb and react with Li ions more easily. With cycling, smaller NiO/Ni nanoparticle will bring more active sites, leading additional interfacial lithiation capacity. At the same time, the confinement effect of the NiO compound further increases the capacity of the nanocomposites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 750, 25 June 2018, Pages 17-22
Journal: Journal of Alloys and Compounds - Volume 750, 25 June 2018, Pages 17-22
نویسندگان
Yidong Luo, Mouyi Weng, Jiaxin Zheng, Qinghua Zhang, Bingqing Xu, Shaoqing Song, Yang Shen, Yuanhua Lin, Feng Pan, Cewen Nan,