Iron oxide/graphene composites as negative-electrode materials for lithium ion batteries - optimum particle size for stable performance

Sun, Qian1; Liu, Xiang1; Djurisic, Aleksandra B.1; Leung, Tik Lun2; Xie, Maohai1; Ng, Alan M. C.1,3; Li, Hang Kong4; Deng, Zhaofeng2; Shih, Kaimin4

2015

10.1039/c5ra19852f

RSC Advances   影响因子和分区

2046-2069

We synthesized Fe2O3/graphene composites by a hydrothermal method. The effect of varying the pH in the range pH = 8-12 on the properties of the composites and their performance as negative-electrode materials in lithium ion batteries was investigated. The particle size increased with increasing pH. The best battery performance was obtained for composites prepared at pH = 10 (specific capacity exceeding 800 mA h g(-1) after 60 cycles) due to superior preservation of the electrode morphology compared to samples prepared at lower or higher pH values.

SCI ; EI

英语

其他

National Science Fund of China[21403103]

Chemistry

Chemistry, Multidisciplinary

WOS:000364057000048

ROYAL SOC CHEMISTRY

20154501517473

Electrodes ; Hematite ; Particle size

Minerals:482.2

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
2.Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
3.South Univ Sci & Technol China, Dept Phys, Shenzhen, Peoples R China
4.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China

Sun, Qian,Liu, Xiang,Djurisic, Aleksandra B.,et al. Iron oxide/graphene composites as negative-electrode materials for lithium ion batteries - optimum particle size for stable performance[J]. RSC Advances,2015,5(111):91466-91471.

Sun, Qian.,Liu, Xiang.,Djurisic, Aleksandra B..,Leung, Tik Lun.,Xie, Maohai.,...&Shih, Kaimin.(2015).Iron oxide/graphene composites as negative-electrode materials for lithium ion batteries - optimum particle size for stable performance.RSC Advances,5(111),91466-91471.

Sun, Qian,et al."Iron oxide/graphene composites as negative-electrode materials for lithium ion batteries - optimum particle size for stable performance".RSC Advances 5.111(2015):91466-91471.