Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36253
Title: Fe/amorphous SnO2 core-shell structured nanocapsules for microwave absorptive and electrochemical performance
Authors: Liu, XG
Zhou, GP
Or, SW 
Sun, YP
Issue Date: 2014
Publisher: Royal Society of Chemistry
Source: RSC advances, 2014, v. 4, no. 93, p. 51389-51394 How to cite?
Journal: RSC advances 
Abstract: Fe nanocapsules with an Fe nanoparticle core and an amorphous SnO2 shell have been synthesized by the modified arc discharge method. The microwave absorption properties and electrochemical performances of Fe/amorphous SnO2 nanocapsules were investigated. The synergistic effect of magnetic loss in the Fe nanoparticles core and dielectric loss in the SnO2 shell gave the Fe/SnO2 nanocapsules excellent microwave absorption properties. The reflection loss (RL) value of the Fe/SnO2 nanocapsule-paraffin composite is -39.2 dB at 16.8 GHz at the absorbent thickness of 2 mm and the absorption bandwidth with the RL below -20 dB is up to 10.6 GHz (from 7.4 to 18 GHz) for the absorber with the thickness of 2-3.8 mm. When evaluated as anode materials for lithium-ion batteries, the Fe/amorphous SnO2 nanocapsules deliver an initial discharge of 1558.7 mA h g(-1) at 38 mA g(-1) and maintain a reversible capacity of 698.2 mA h g(-1) over 100 cycles, which is attributed to the amorphous SnO2 nanoshell.
URI: http://hdl.handle.net/10397/36253
EISSN: 2046-2069
DOI: 10.1039/c4ra08998g
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