Nanocrystalline tin disulfide coating of reduced graphene oxide produced by the peroxostannate deposition route for sodium ion battery anodes

Petr V. Prikhodchenko, Denis Y.W. Yu*, Sudip K. Batabyal, Vladimir Uvarov, Jenny Gun, Sergey Sladkevich, Alexey A. Mikhaylov, Alexander G. Medvedev, Ovadia Lev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

110 Scopus citations

Abstract

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 °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.

Original languageAmerican English
Pages (from-to)8431-8437
Number of pages7
JournalJournal of Materials Chemistry A
Volume2
Issue number22
DOIs
StatePublished - 14 Jun 2014

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