Growth of 3D hierarchical porous NiO@carbon nanoflakes on graphene sheets for high-performance lithium-ion batteries

Physical Chemistry Chemical Physics : PCCP
Xiongwei WangPeiyi Wu

Abstract

Nickel oxide (NiO) as one of the anode electrode materials for lithium ion batteries (LIBs) has attracted considerable research attention. However, the poor electron conductivity and bad capacity retention performance greatly hinder its wide application. Herein, we prepared a novel three-dimensional (3D) hierarchical porous graphene@NiO@carbon composite via a simple solvothermal process, in which the graphene sheets were uniformly wrapped by porous NiO@carbon nanoflakes. In this case, nickelocene was creatively used as the precursor for both NiO and amorphous carbon, while graphene oxide sheets were employed as a template for the two-dimensional nanostructure and the conductive graphene backbone. The resultant composites possess high surface area (196 m(2) g(-1)) and large pore volume (0.46 cm(3) g(-1)). When it is applied as an anode for LIBs, the carbon outer-layer can effectively suppress the large volume change and serious aggregation of NiO nanoparticles during the charge-discharge process. Therefore, the graphene@NiO@carbon composites show a high reversible capacity of 1042 mA h g(-1) at a current density of 200 mA g(-1), an excellent rate performance and long cycle life. We believe that our method provides a new route fo...Continue Reading

References

Nov 20, 2001·Nature·J M Tarascon, M Armand
Feb 8, 2008·Nature·M Armand, J-M Tarascon
Mar 14, 2008·Angewandte Chemie·Peter G BruceJean-Marie Tarascon
Aug 31, 2010·Nature Nanotechnology·N BalkeS V Kalinin
May 11, 2012·Advanced Materials·Zhiyu WangXiong Wen David Lou
Apr 19, 2013·Physical Chemistry Chemical Physics : PCCP·Jaehan LeeJeyong Yoon
Jan 23, 2014·Physical Chemistry Chemical Physics : PCCP·Ting Yang, Bingan Lu
Apr 2, 2014·Chemistry : a European Journal·Lei Zhang, Xiong Wen David Lou
Mar 7, 2015·Physical Chemistry Chemical Physics : PCCP·Yongbing LouJinxi Chen
May 1, 2015·ACS Applied Materials & Interfaces·Zehui ZhangPeiyi Wu

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Citations

Sep 19, 2018·Chemistry : a European Journal·Yushu LiuHuan Pang
Dec 31, 2020·ACS Applied Materials & Interfaces·Chanhoon KimIl-Doo Kim

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