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Title: Controlled soft-template synthesis of ultrathin C@FeS nanosheets with high-Li-storage performance
Authors: Xu, Chen
Zeng, Yi
Rui, Xianhong
Xiao, Ni
Zhu, Jixin
Zhang, Wenyu
Chen, Jing
Liu, Weiling
Tan, Huiteng
Hng, Huey Hoon
Yan, Qingyu
Issue Date: 2012
Source: Xu, C., Zeng, Y., Rui, X., Xiao, N., Zhu, J., Zhang, W., et al. (2012). Controlled Soft-Template Synthesis of Ultrathin C@FeS Nanosheets with High-Li-Storage Performance. ACS Nano, 6(6), 4713-4721.
Series/Report no.: ACS nano
Abstract: We report a facile approach to prepare carbon-coated troilite FeS (C@FeS) nanosheets via surfactant-assisted solution-based synthesis. 1-Dodecanethiol is used as both the sulfur source and the surfactant, which may form different-shaped micelles to direct the growth of nanostructures. Under appropriate growth conditions, the iron and sulfur atoms react to form thin layers of FeS while the hydrocarbon tails of 1-dodecanethiol separate the thin FeS layers, which turn to carbon after annealing in Ar. Such an approach can be extended to grow C@FeS nanospheres and nanoplates by modifying the synthesis parameters. The C@FeS nanosheets display excellent Li storage properties with high specific capacities and stable charge/discharge cyclability, especially at fast charge/discharge rates.
ISSN: 1936-0851
DOI: 10.1021/nn2045714
Rights: © 2012 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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