Journal
NEW JOURNAL OF CHEMISTRY
Volume 38, Issue 6, Pages 2428-2434Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj00090k
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Funding
- NSFC [51002138, 51172205]
- Natural Science Foundation of Zhejiang Province [LR13E020002, LY13E020010]
- Qianjiang Talent Project [2010R10029]
- 'Qianjiang Scholars' program
- SRF for ROCS, State Education Ministry [2010609]
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In this work, mesoporous Fe3O4@C submicrospheres with a diameter of 500 nm were successfully synthesized via a template-free hydrothermal method. Time-dependent experiments revealed that this unique microstructure evolved by a novel self-corrosion mechanism. As the anodic materials for lithium-ion batteries, these mesoporous Fe3O4@C submicrospheres exhibited enhanced cycling performance (930 mA h g(-1) at a current density of 100 mA g(-1) after 50 cycles) and high rate capabilities (910, 884, 770 and 710 mA h g(-1) at current densities of 100, 200, 500 and 1000 mA g(-1), respectively). This outstanding electrochemical behavior was ascribed to the enhanced structural stability and increased electrical conductivity arising from the porosity and carbon coating layers of the Fe3O4@C submicrospheres.
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