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Synthesis and characterisation of reduced graphene oxide/bismuth composite for electrodes in electrochemical energy storage devices

Lookup NU author(s): Jiabin Wang, Dr Oana Bretcanu, Professor Lidija Siller

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

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.

Publication metadata

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

Journal: ChemSusChem

Year: 2017

Volume: 10

Issue: 2

Pages: 466-466

Online publication date: 20/01/2017

Acceptance date: 25/11/2016

Date deposited: 29/11/2016

ISSN (electronic): 1864-564X

Publisher: Wiley-VCH Verlag GmbH

URL: http://dx.doi.org/10.1002/cssc.201601553

DOI: 10.1002/cssc.201601553

Data Access Statement: http://dx.doi.org/10.17634/135315-6

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