Large-scale fabrication of graphene-wrapped FeF3 nanocrystals as cathode materials for lithium ion batteries

Ma, Ruguang1; Lu, Zhouguang2; Wang, Chundong1; Wang, Hong-En3; Yang, Shiliu1; Xi, Liujiang1; Chung, Jonathan C. Y.1

2013

10.1039/c3nr00380a

Nanoscale   影响因子和分区

2040-3364

Graphene-wrapped FeF3 nanocrystals (FeF3/G) have been successfully fabricated for the first time by a vapour-solid method, which can be generalized to synthesize other metal fluorides. The as-synthesized FeF3/G delivers a charge capacity of 155, 113, and 73 mA h g(-1) at 104, 502, and 1040 mA g(-1) in turn, displaying superior rate capability to bare FeF3. Moreover, it exhibits stable cyclability over 100 cycles with a charge capacity of 185.6 and 119.8 mA h g(-1) at 20.8 and 208 mA g(-1), respectively, which could be ascribed to the buffering effect and lowered resistance from the graphene. This versatile vapour-solid method and the improved cyclability provide a promising avenue for the application of metal fluorides as cathode materials.

SCI ; EI

英语

其他

National Natural Science Foundation of China[21001117]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000321014900022

ROYAL SOC CHEMISTRY

20132816496344

Cathodes ; Fabrication ; Graphene ; Iron compounds ; Lithium-ion batteries ; Nanocrystals

Nanotechnology:761 ; Chemical Products Generally:804

Web of Science

1.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
2.South Univ Sci & Technol China, Dept Micronano Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China
3.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China

Ma, Ruguang,Lu, Zhouguang,Wang, Chundong,et al. Large-scale fabrication of graphene-wrapped FeF3 nanocrystals as cathode materials for lithium ion batteries[J]. Nanoscale,2013,5(14):6338-6343.

Ma, Ruguang.,Lu, Zhouguang.,Wang, Chundong.,Wang, Hong-En.,Yang, Shiliu.,...&Chung, Jonathan C. Y..(2013).Large-scale fabrication of graphene-wrapped FeF3 nanocrystals as cathode materials for lithium ion batteries.Nanoscale,5(14),6338-6343.

Ma, Ruguang,et al."Large-scale fabrication of graphene-wrapped FeF3 nanocrystals as cathode materials for lithium ion batteries".Nanoscale 5.14(2013):6338-6343.