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.

PDF New_Jou_Che_42-8_5996_2018.pdf - Published Version Restricted to Registered users only Download (5MB) | Request a copy

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
Publication:	NEW JOURNAL OF CHEMISTRY
Publisher:	ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
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
Date Deposited:	16 May 2018 15:57
Last Modified:	25 Aug 2022 05:28
URI:	https://eprints.iisc.ac.in/id/eprint/59871

Actions (login required)

View Item