Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 137, Issue 40, Pages 13161-13166Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b08743
Keywords
-
Categories
Funding
- State Key 973 Program of PRC [2013CB934104]
- NSF of China [21210004]
- Shanghai Science Foundation [14JC1400700]
- Australian Research Council (ARC) [FT110100800, DE140100619]
- Chancellor's Post Doctoral Fellowship (CPDF)
- International Researcher Development (IRD) program from UTS
- Australian Research Council [FT110100800, DE140100619] Funding Source: Australian Research Council
Ask authors/readers for more resources
Rational design and controllable synthesis of TiO2 based materials with unique microstructure, high reactivity, and excellent electrochemical performance for lithium ion batteries are crucially desired. In this paper, we developed a versatile route to synthesize hollow TiO2/graphitic carbon (H-TiO2/GC) spheres with superior electrochemical performance. The as-prepared mesoporous H-TiO2/GC hollow spheres present a high specific surface area (298 m(2) g(-1)), a high pore volume (0.31 cm(3) g(-1)), a large pore size (similar to 5 nm), well-defined hollow structure (monodispersed size of 600 nm and inner diameter of similar to 400 nm, shell thickness of 100 nm), and small nanocrystals of anatase TiO2 (similar to 8 nm) conformably encapsulated in ultrathin graphitic carbon layers. As a result, the H-TiO2/GC hollow spheres achieve excellent electrochemical reactivity and stability as an anode material for lithium ion batteries. A high specific capacity of 137 mAh g(-1) can be achieved up to 1000 cycles at a current density of 1 Ag-1 (5 C). We believe that the mesoporous H-TiO2/GC hollow spheres are expected to be applied as a high-performance electrode material for next generation lithium ion batteries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available