Page 5 of 6
RSC Advances
DOI: 10.1039/C5RA09657J
electrolyte. Moreover, the 3D hierarchical CuO nanostructure
constructed by nanopetals, which is composed of nanoparticles
may provide a fast and efficient transport of Li ions and
effectively buffer the stress induced during the chargeꢀdischarge
process. Moreover, the better structure durability of the flowerꢀ
like CuO is responsible for its excellent cycling stability. The
good electrochemical performance makes the flowerꢀlike CuO a
promising anode material for LIBs.
12 F.ꢀS. Ke, L. Huang, G.ꢀZ. Wei, L.ꢀJ. Xue, J.ꢀT. Li, B.
Zhang, S.ꢀR. Chen, X.ꢀY. Fan and S.ꢀG. Sun, Electrochim.
Acta, 2009, 54, 5825.
6
6
7
0
5
0
13 K. Chen and D. Xue,Phys. Chem. Chem. Phys., 2013, 15
,
1
9708.
5
1
4 X. Chen, N. Zhang and K. Sun, J. Mater. Chem., 2012, 22
,
13637.
15 Y. Liu, W. Wang, L. Gu, Y. Wang, Y. Ying, Y. Mao, L.
Sun and X. Peng, ACS Appl. Mater. Interfaces, 2013,
850.
5
,
9
1
1
1
1
6 S. K. Shinde, D. P. Dubal, G. S. Ghodake, D. Y. Kim and
V. J. Fulari, J. Electroanal. Chem., 2014, 732, 80.
7. L. Wang, W. Cheng, H. Gong, C. Wang, D. Wang, K.
Tang and Y. Qian,J. Mater. Chem., 2012, 22, 11297.
8. W. Zhang, M. Li, Q. Wang, G. Chen, M. Kong, Z. Yang
and S. Mann,Adv. Funct. Mater., 2011, 21, 3516.
Conclusions
1
1
2
0
5
0
In conclusion, flowerꢀlike CuO and urchinꢀlike CuO have been
successfully prepared via a facile solvothermal method without
any template or surfactant. Owing to the 3D hierarchical
nanostructures and large specific surface area, the asꢀprepared
flowerꢀlike CuO electrode shows enhanced electrochemical
9. M. Xu, F. Wang, B. Ding, X. Song and J. Fang, RSC
Advances, 2012, 2, 2240.
performance as an anode material for LIBs. The flowerꢀlike CuO 75 20. Z. Yuan, Y. Wang and Y. Qian, RSC Advances, 2012,
2,
8
602.
electrode delivers a high initial discharge capacitance of 1457.2
ꢀ
1
ꢀ1
21. S. Sun, Y. Sun, X. Zhang, H. Zhang, X. Song and Z. Yang,
mAh g at 100 mA g , desirable rate specific capacitance (480
ꢀ
1
ꢀ1
CrystEngComm, 2013, 15, 5275.
2. J. Y. Xiang, J. P. Tu, L. Zhang, Y. Zhou, X. L. Wang and
S. J. Shi, Electrochim. Acta, 2010, 55, 1820.
mAh g at 1000 mA g ) and excellent cycling stability (797.5
mAh
2
2
ꢀ
1
g
after 50 cycles). The excellent electrochemical
8
8
9
9
0
5
0
5
performance enables such flowerꢀlike CuO electrode to stand out
as a promising electrode material for LIBs..
3. Z. Sun, T. Liao, Y. Dou, S. M. Hwang, M. S. Park, L.
Jiang, J. H. Kim and S. X. Dou, Nat. Commun., 2014,
813.
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Acknowledgements
This work was financially supported by the Natural Science
Foundation (13KJB480004) of Jiangsu Education Committee of
China and the Priority Academic Program Development of
Jiangsu Higher Education Institutions.
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