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In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery

Penki, Tirupathi Rao and Valurouthu, Geetha and Shivakumara, S and Sethuraman, Vijay Anand and Munichandraiah, N (2018) In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery. In: NEW JOURNAL OF CHEMISTRY, 42 (8). pp. 5996-6004.

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Official URL: http://dx.doi.org/ 10.1039/c7nj04930g

Abstract

Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N-2 atmosphere, and the resulting Bi/RGO nanocomposites were used as an anode material for Mg-ion batteries. The nanocomposite of 60% Bi : 40% RGO is a beneficial anode material, delivering a discharge capacity as high as 413 and 372 mA h g(-1) at the specific current of 39 mA g(-1) in the 1st and 50th cycles, respectively. In addition, it shows high-rate capability with the discharge capacities of 381, 372, 354, 295, and 238 mA h g(-1) at the specific currents of 53, 100, 200, 500, and 700 mA g(-1), respectively. The better electrochemical performance of the nanocomposite is due to improvement in the electronic conductivity and significant reduction of volume changes during electrochemical cycling. This study demonstrates the bismuth (Bi)/reduced graphene oxide (RGO) nanocomposite as a promising high-capacity anode for magnesium-ion batteries with longer life cycle and high-rate performance.

Item Type: Journal Article
Additional Information: Copy right for this article belong to ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 16 May 2018 15:57
Last Modified: 05 Nov 2018 11:51
URI: http://eprints.iisc.ac.in/id/eprint/59871

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