کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460991 | 1516201 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Porous graphene anchored with Sb/SbOx as sodium-ion battery anode with enhanced reversible capacity and cycle 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
Nanocomposites of porous graphene anchored with Sb/SbOx nanoparticles were synthesized through a two-step wet chemical process. SbOx/graphene was initially prepared by refluxing SbCl3 and graphene oxide in benzyl alcohol. Subsequently, the SbOx nanoparticles were partially reduced by NaBH4. The nanocomposites exhibited an enhanced performance for sodium-ion battery with a stable sodium-ion storage capacity of 311.6Â mAh gâ1Â at 50Â mAÂ gâ1 after 100 cycles and a rate capability of 205.6Â mAh gâ1Â at 800Â mAÂ gâ1. Reduction of SbOx by adding moderate amount of NaBH4 was conducive in improving the nanocomposite's electrochemical performance. The sodium-ion storage capacity of Sb/SbOx/graphene material was 1.4 times higher than that of SbOx/graphene without NaBH4 and 6.2 times higher than that of Sb/graphene with excessive amount of NaBH4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 693, 5 February 2017, Pages 141-149
Journal: Journal of Alloys and Compounds - Volume 693, 5 February 2017, Pages 141-149
نویسندگان
Gui-Zhi Wang, Jian-Min Feng, Lei Dong, Xi-Fei Li, De-Jun Li,