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https://hdl.handle.net/2440/133298
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Type: | Journal article |
Title: | In situ construction of 3D interconnected FeS@Fe3C@Graphitic carbon networks for high-performance sodium-ion batteries |
Author: | Wang, Q. Zhang, W. Guo, C. Liu, Y. Wang, C. Guo, Z. |
Citation: | Advanced Functional Materials, 2017; 27(41):1703390-1-1703390-8 |
Publisher: | Wiley |
Issue Date: | 2017 |
ISSN: | 1616-301X 1616-3028 |
Statement of Responsibility: | Qinghong Wang, Wenchao Zhang, Can Guo, Yajie Liu, Chao Wang, Zaiping Guo |
Abstract: | Iron sulfides have been attracting great attention as anode materials for high-performance rechargeable sodium-ion batteries due to their high theoretical capacity and low cost. In practice, however, they deliver unsatisfactory performance because of their intrinsically low conductivity and volume expansion during charge–discharge processes. Here, a facile in situ synthesis of a 3D interconnected FeS@Fe3C@graphitic carbon (FeS@Fe3C@GC) composite via chemical vapor deposition (CVD) followed by a sulfuration strategy is developed. The construction of the double-layered Fe3C/GC shell and the integral 3D GC network benefits from the catalytic effect of iron (or iron oxides) during the CVD process. The unique nanostructure offers fast electron/Na ion transport pathways and exhibits outstanding structural stability, ensuring fast kinetics and long cycle life of the FeS@Fe3C@GC electrodes for sodium storage. A similar process can be applied for the fabrication of various metal oxide/carbon and metal sulfide/carbon electrode materials for high-performance lithium/sodium-ion batteries. |
Keywords: | Anode materials; chemical vapor deposition; electrochemical performance; FeS@Fe 3 C@graphitic carbon networks; sodium-ion batteries |
Rights: | © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
DOI: | 10.1002/adfm.201703390 |
Grant ID: | http://purl.org/au-research/grants/arc/FT150100109 |
Published version: | http://dx.doi.org/10.1002/adfm.201703390 |
Appears in Collections: | Chemistry and Physics publications |
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