کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4766898 | 1424109 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of NaV6O15 nanorods via thermal oxidation of sodium-intercalated 2D V2CTx and their electrochemical properties as anode for lithium-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Herein, a ternary vanadium bronze compound, NaV6O15 was synthesized via a low temperature thermal oxidization of sodium-intercalated V2CTx, which exhibited a higher specific capacity than the precursor V2CTx when used as the anode material for lithium-ion batteries (LIBs). The characterization results showed that the NaV6O15 nanorods spontaneously grew in the interlayers and directly damaged the layered structure of MXene. Moreover, the charge-discharge result demonstrated an initial specific discharge capacity of 350 mAh gâ1 under a current density of 50 mA gâ1 was achieved and, in particular, a specific capacity of 120 mAh gâ1 and a Coulombic efficiency of 100% were maintained after as many as 200 cycles at 1000 mA gâ1 without the lattice expansion and deformation of NaV6O15 during the lithium-ion insertion/de-insertion process. According to these results, it is therefore expected that optimizing the process further to oxidize other metal cations intercalated-MXene will exploit other nanostructures employed as the electrode in LIBs and demonstrate immeasurable performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 248, 10 September 2017, Pages 178-187
Journal: Electrochimica Acta - Volume 248, 10 September 2017, Pages 178-187
نویسندگان
Heng Zhang, Libo Wang, Changjie Shen, Gang Qin, Qianku Hu, Aiguo Zhou,