In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery. (21st March 2018)

• Record Type: Journal Article
• Authors: Penki, Tirupathi Rao; Valurouthu, Geetha; Shivakumara, S.; Sethuraman, Vijay Anand; Munichandraiah, N.
• Is Part Of: New journal of chemistry. Volume 42:Number 8(2018)
• Page Start: 5996
• Page End: 6004
• Publication Date: 2018-03-21
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj04930g
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N2 atmosphere, and the resulting Bi/RGO nanocomposites were used as an anode material for Mg-ion batteries. Abstract : Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N2 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.