期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 22, 页码 8431-8437出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta15248k
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资金
- Singapore National Research Foundation
- Harvey M. Krueger Family Center for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem
- Israel Science Foundation
- I-SAEF
- Israel Strategic Alternative Energy Foundation
- Russian Foundation for Basic Research [14-03-00279]
- Council on Grants of the President of the Russian Federation [NSh-1670.2012.3, MK-5847.2014.3]
- Golda Meir Postdoctoral Fellowship
A highly stable sodium ion battery anode was prepared by deposition of hydroperoxostannate on graphene oxide from hydrogen-peroxide-rich solution followed by sulfidization and 300 degrees C heat treatment. The material was characterized by electron microscopy, powder X-ray diffraction and X-ray photoelectron spectroscopy which showed that the active material is mostly rhombohedral SnS2 whose (001) planes were preferentially oriented in parallel to the graphene oxide sheets. The material exhibited >610 mA h g(-1) charge capacity at 50 mA g(-1) (with >99.6% charging efficiency) between 0 and 2 V vs. Na/Na+ electrode, high cycling stability for over 150 cycles and very good rate performance, >320 mA h g(-1) at 2000 mA g(-1).
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