Facile hydrothermal synthesis of SnO2/C microspheres and double layered core–shell SnO2 microspheres as anode materials for Li-ion secondary batteries

Content Provider	Semantic Scholar
Author	Wu, Mingbo Tan, Minghui Li, Zhongtao Li, Yanpeng Wang, Huaiping Zheng, Jingtang Qiu, Jieshan
Copyright Year	2014
Abstract	SnO2/C microspheres and double layered core–shell SnO2 microspheres have been synthesized by a facile hydrothermal method with a post heat-treatment. The soluble starch used as carbon source and the mass ratio of starch to SnCl4·5H2O play key roles in the formation of SnO2/C microspheres, and the hydrothermal synthesis mechanism of SnO2/C microspheres has been proposed. SnO2/C-1.0 microspheres (the mass ratio of soluble starch to SnCl4·5H2O is 1:1) with good spherical shape and 34.91 wt% of SnO2 exhibit superior rate capability and cyclic stability, while double layered core–shell SnO2 microspheres show improved electrochemical performance compared to SnO2 particles. The electrode based on SnO2/C-1.0 microspheres delivers a reversible discharge capacity of 568 mA h g−1 at a constant current density of 100 mA g−1 in the second cycle, and 379 mA h g−1 (67% retention) is retained after the 50th cycle, suggesting SnO2/C microspheres are promising candidates for energy storage.
Starting Page	25189
Ending Page	25194
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1039/C4RA00477A
Volume Number	4
Alternate Webpage(s)	https://pubs.rsc.org/en/content/getauthorversionpdf/C4RA00477A
Alternate Webpage(s)	http://www.rsc.org/suppdata/ra/c4/c4ra00477a/c4ra00477a1.pdf
Alternate Webpage(s)	http://carbon.upc.edu.cn/_upload/article/files/60/e7/c8fc09d8448f8b398857a6a3dbc9/36472fc7-9cf9-4b0d-b1f4-180085081049.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C4RA00477A
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article