کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10142114 | 1646091 | 2019 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile fabrication of 3D hierarchically honeycomb-like Na7Fe4.5(P2O7)4@C nanocomposites with enhanced sodium storage performance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, 3D honeycomb-like carbon-coated Na7Fe4.5(P2O7)4 nanocomposites are fabricated by a simple sol-gel method and used as cathode materials for the sodium-ion batteries. The electrochemical results reveal that the 3D hierarchically porous Na7Fe4.5(P2O7)4/C nanocomposites provide a high reversible capacity of 106â¯mAâ¯hâ¯gâ1 at 0.5â¯C and a good rate performance (83â¯mAâ¯hâ¯gâ1 at 2â¯C). After even 100 cycles at 1â¯C, 85% of the capacity retentions can be maintained in half batteries. The remarking electrode performance was attributed to the combination of 3D hierarchically porous structure, which facilitates electrolyte penetration into every corner and carbon coating can promote rapid electron transfer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 771, 15 January 2019, Pages 297-301
Journal: Journal of Alloys and Compounds - Volume 771, 15 January 2019, Pages 297-301
نویسندگان
Wei Gao, Yubin Niu, Renming Zhan, Yanyan Wang, Jian Jiang, Jingang Yang, Maowen Xu,