Journal
MATERIALS LETTERS
Volume 205, Issue -, Pages 10-14Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2017.06.020
Keywords
Energy storage and conversion; Mesoporous materials; Carbon materials; Fe2O3; Metal alginate
Funding
- National Key Research and Development Program [2016YFA0202900]
- National Science Foundation of China [51672173]
- Shanghai Science and Technology Committee [16520710900, 14JC1403300, 14DZ2261204, 14520710100]
- Science and Technology Planning Project of Guangdong Province [2016A010103018]
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Inspired by the complexat ion of sodium alginate, we demonstrate here a facile approach for the formation of Fe2O3 in situ on the surface of mesoporous carbon (Fe2O3-MC) from alginate. The freeze-dried iron alginate gel (FeA) is converted into mesoporous carbon loaded with Fe2O3 nanoparticles after calcination in vacuum. When used as anode in lithium-ion batteries (LIBs), the obtained Fe2O3-MC composite shows a high reversible capacity of 703 mAh g (1) after 50 cycles at 100 mA g (1). At a much high current density of 2 A g (1), the anode based on Fe2O3-MC still exhibits a higher reversible capacity (384 mAh g (1)) than that of the commercially used graphite. The strategy provides a promising facile synthesis route for the fabrication of transition metal oxide-mesoporous carbon composites, which have great potential applications in energy storage. (C) 2017 Elsevier B.V. All rights reserved.
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