Pulsed laser deposited Cr2O3 nanostructured thin film on graphene as anode material for lithium-ion batteries

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Authors

Khamlich, S.
Nuru, Z.Y.
Bello, Abdulhakeem
Fabiane, Mopeli
Dangbegnon, Julien K.
Manyala, Ncholu I.
Maaza, M.

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Elsevier

Abstract

Pulsed laser deposition technique was used to deposit Cr2O3 nanostructured thin film on a chemical vapour deposited few-layer graphene (FLG) on nickel (Ni) substrate for application as anode material for lithium-ion batteries. The experimental results show that graphene can effectively enhance the electrochemical property of Cr2O3. For Cr2O3 thin film deposited on Ni (Cr2O3/Ni), a discharge capacity of 747.8 mA h g-1 can be delivered during the first lithiation process. After growing Cr2O3 thin film on FLG/Ni, the initial discharge capacity of Cr2O3/FLG/Ni was improved to 1234.5 mA h g-1. The reversible lithium storage capacity of the as-grown material is 692.2 mA h g-1 after 100 cycles, which is much higher than that of Cr2O3/Ni (111.3 mA h g-1). This study reveals the differences between the two material systems and emphasizes the role of the graphene layers in improving the electrochemical stability of the Cr2O3 nanostructured thin film.

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Keywords

Chromium (III) oxide, Anode, Graphene, Lithium-ion batteries, Few-layer graphene (FLG)

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Citation

Khamlich, S, Nuru, ZY, Bello, A, Fabiane, M, Dangbegnon, JK, Manyala, N & Maaza, M 2015, 'Pulsed laser deposited Cr2O3 nanostructured thin film on graphene as anode material for lithium-ion batteries', Journal of Alloys and Compounds, vol. 637, pp. 219-225.