Fabrication of FeF3 nanocrystals dispersed into a porous carbon matrix as a high performance cathode material for lithium ion batteries

Ma, Ruguang1,2; Wang, Man2; Tao, Pengpeng1; Wang, Yu2; Cao, Chenwei2; Shan, Guangcun2; Yang, Shiliu2; Xi, Liujiang2; Chung, Jonathan C. Y.2; Lu, Zhouguang1

2013

10.1039/c3ta13086j

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

FeF3/C nanocomposites, where FeF3 nanocrystals had been dispersed into a porous carbon matrix, were successfully fabricated by a novel vapour-solid method in a tailored autoclave. Phase evolution of the reaction between the precursor and HF solution vapour under air and argon gas atmospheres were investigated. The results showed that the air in the autoclave played an important role in driving the reaction to form FeF3. The as-prepared FeF3/C delivered 134.3, 103.2 and 71.0 mA h g(-1) of charge capacity at a current density of 104, 520, and 1040 mA g(-1) in turn, exhibiting superior rate capability to the bare FeF3. Moreover, it displayed stable cycling performance, with a charge capacity of 196.3 mA h g(-1) at 20.8 mA g(-1). EIS and BET investigations indicated that the good electrochemical performance can be attributed to the good electrical conductivity and high specific surface area that result from the porous carbon matrix.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[21001117]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000326984500032

ROYAL SOC CHEMISTRY

20134717011827

Carbon ; Cathodes ; Fabrication ; Hydrofluoric acid ; Iron compounds ; Nanocrystals ; Porous materials ; Pressure vessels

Tanks:619.2 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Materials Science:951

Web of Science

1.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen, Guangdong, Peoples R China
2.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

Ma, Ruguang,Wang, Man,Tao, Pengpeng,et al. Fabrication of FeF3 nanocrystals dispersed into a porous carbon matrix as a high performance cathode material for lithium ion batteries[J]. Journal of Materials Chemistry A,2013,1(47):15060-15067.

Ma, Ruguang.,Wang, Man.,Tao, Pengpeng.,Wang, Yu.,Cao, Chenwei.,...&Lu, Zhouguang.(2013).Fabrication of FeF3 nanocrystals dispersed into a porous carbon matrix as a high performance cathode material for lithium ion batteries.Journal of Materials Chemistry A,1(47),15060-15067.

Ma, Ruguang,et al."Fabrication of FeF3 nanocrystals dispersed into a porous carbon matrix as a high performance cathode material for lithium ion batteries".Journal of Materials Chemistry A 1.47(2013):15060-15067.