کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
188333 459658 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
NiO nanoparticles with plate structure grown on graphene as fast charge–discharge anode material for lithium ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
NiO nanoparticles with plate structure grown on graphene as fast charge–discharge anode material for lithium ion batteries
چکیده انگلیسی

A graphene/NiO composite was prepared by simple chemical precipitation followed by thermal annealing. The results of XRD, FT-IR, FE-SEM, FE-TEM, and EDS analyses confirmed the presence of NiO nanoparticles with plate structure on the graphene surface. The discharge capacities of graphene, graphene/NiO (37 wt.%), and graphene/NiO (59 wt.%) are about 302, 604, and 856 mAh g−1 at 5000 mA g−1 (5 C), respectively. The cells containing 59 wt.% NiO show the best performance, and the graphene nanocomposite materials have high rate properties that are comparable to some of the best results reported in the literature using NiO. This graphene/NiO (37 and 59 wt.%) nanocomposite displays superior LIB performance with large reversible capacity, high Coulombic efficiency, good cyclic performance, and excellent rate capability, highlighting the importance of the anchoring of nanoplate structure NiO on graphene sheets for maximum utilization of electrochemically active graphene/NiO for energy storage applications in high-performance LIB.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 78, 1 September 2012, Pages 406–411
نویسندگان
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