Issue 15, 2012

Layer-by-layer assembled MoO2–graphene thin film as a high-capacity and binder-free anode for lithium-ion batteries

Abstract

Thin films of MoO2 nanoparticles and graphene sheets are created by layer-by-layer (LBL) assembly as binder-free anodes for lithium-ion batteries. Both anionic polyoxometalate clusters and graphene oxide nanosheets with oxygen functional groups on both basal planes and edges are assembled into LBL films with the aid of a cationic polyelectrolyte. After a subsequent thermal treatment in an Ar–H2 atmosphere, hybrid MoO2graphene films with three-dimensionally interconnected nanopores are formed, which comprise ultrafine MoO2 nanoparticles homogeneously embedded in the porous network of graphene nanosheets. When used as an anode for lithium-ion batteries, the MoO2graphene thin-film electrode shows superior electrochemical performance with high specific capacity and excellent cyclability. A high specific capacity of 675.9 mA h g−1 after 100 discharge–charge cycles is achieved, indicating a promising anode candidate for lithium-storage applications.

Graphical abstract: Layer-by-layer assembled MoO2–graphene thin film as a high-capacity and binder-free anode for lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
27 Mar 2012
Accepted
30 May 2012
First published
06 Jun 2012

Nanoscale, 2012,4, 4707-4711

Layer-by-layer assembled MoO2graphene thin film as a high-capacity and binder-free anode for lithium-ion batteries

F. Xia, X. Hu, Y. Sun, W. Luo and Y. Huang, Nanoscale, 2012, 4, 4707 DOI: 10.1039/C2NR30742A

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