Γ-MnS/reduced graphene oxide nanocomposites with great lithium storage capacity

Γ-MnS/reduced graphene oxide nanocomposites with great lithium storage capacity The synthesis, characterization and electrochemical study of γ-MnS/rGO nanocomposites are described in this work. A one-pot hydro-thermal method is employed to fabricate γ-MnS/rGO electrodes. l-cysteine is used as sulfur source as well as the reduction of GO to rGO. The resulting materials are characterized by XRD, SEM, TEM, FT-IR and TG. Γ-MnS particles dispersing on the surface of reduced graphene oxide have the average diameter of ca. 37nm. As a splendid anode material for lithium-ion batteries, γ-MnS/rGO nanocomposites achieve a stable specific capacity of ca. 600mAh/g at a current density of 200mA/g for 100cycles and deliver a great rate performance (a reversible capacity of ca. 320mAh/g even at a high current density of 1000mA/g). All of these electrochemical performances are greater than those of the pristine MnS. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Solid State Ionics Elsevier

Γ-MnS/reduced graphene oxide nanocomposites with great lithium storage capacity

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0167-2738
eISSN
1872-7689
D.O.I.
10.1016/j.ssi.2015.06.005
Publisher site
See Article on Publisher Site

Abstract

The synthesis, characterization and electrochemical study of γ-MnS/rGO nanocomposites are described in this work. A one-pot hydro-thermal method is employed to fabricate γ-MnS/rGO electrodes. l-cysteine is used as sulfur source as well as the reduction of GO to rGO. The resulting materials are characterized by XRD, SEM, TEM, FT-IR and TG. Γ-MnS particles dispersing on the surface of reduced graphene oxide have the average diameter of ca. 37nm. As a splendid anode material for lithium-ion batteries, γ-MnS/rGO nanocomposites achieve a stable specific capacity of ca. 600mAh/g at a current density of 200mA/g for 100cycles and deliver a great rate performance (a reversible capacity of ca. 320mAh/g even at a high current density of 1000mA/g). All of these electrochemical performances are greater than those of the pristine MnS.

Journal

Solid State IonicsElsevier

Published: Oct 1, 2015

References

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