Lookup NU author(s): Jiabin Wang,
Dr Oana Bretcanu,
Professor Lidija Siller
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
A reduced graphene oxide (rGO)/Bismuth composite was synthesized for the first time using a polyol process at a low reaction temperature and with a short reaction time (60°C and 3 hours, respectively). The as-prepared sample is structured with 20‑50 nm diameter bismuth particles distributed on the rGO sheets. The rGO/Bi composite displays a combination of capacitive and battery-like charge storage, achieving a specific capacity value of 773 C g-1 at a current density of 0.2 A g-1 when charged to 1 V. The material not only has good power density but also shows moderate stability in cycling tests with current densities as high as 5 A g-1. The relatively high abundance and low price of bismuth make this rGO/Bi material a promising candidate for use in electrode materials in future energy storage devices.
Author(s): Wang J, Zhang H, Hunt MRC, Charles A, Tang J, Bretcanu O, Walker D, Hassan KT, Sun Y, Siller L
Publication type: Article
Publication status: Published
Online publication date: 20/01/2017
Acceptance date: 25/11/2016
ISSN (electronic): 1864-564X
Publisher: Wiley-VCH Verlag GmbH
Data Source Location: http://dx.doi.org/10.17634/135315-6
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