کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7995064 | 1516162 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced sodium ion storage performance of Na3V2(PO4)3 with N-doped carbon by folic acid as carbon-nitrogen source
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Na3V2(PO4)3/nitrogen doped carbon (NVP/CN) composites have been fabricated by a simple and low cost solid-state technique using folic acid as the carbon-nitrogen source. The structure, morphology and electrochemical performance of NVP/CN composites coated with various carbon-nitrogen layer contents are well investigated. The results reveal that the NVP/CN composite with 3.3Â wt% carbon-nitrogen exhibits the largest specific surface area, with a uniform carbon-nitrogen layer thickness of approximately 2Â nm. When tested as cathode material for sodium ion battery, NVP/CN composite with 3.3Â wt% carbon-nitrogen displays an outstanding high rate properties with the discharge capacity of 95 and 91Â mAh gâ1 at 10 and 20Â C, respectively, and long cycle life up to 3000 times even at a high rate of 10Â C due to the smallest charge-transfer resistance and highest Na+ diffusion coefficient. The results suggest that folic acid is a promising carbon-nitrogen source for construction of NVP/CN and other cathode materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 454-459
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 454-459
نویسندگان
Hui Xiao, Xiaobing Huang, Yurong Ren, Haiyan Wang, Jianning Ding, Shibiao Zhou, Xiang Ding, Yuandao Chen,