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Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices

Wang, J.; Zhang, H.; Hunt, M.R.C.; Charles, A.; Tang, J.; Bretcanu, O.; Walker, D.; Hassan, K.T.; Sun, Y.; Siller, L.

Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices Thumbnail


Authors

J. Wang

H. Zhang

A. Charles

J. Tang

O. Bretcanu

D. Walker

K.T. Hassan

Y. Sun

L. Siller



Abstract

A reduced graphene oxide/bismuth (rGO/Bi) 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.

Journal Article Type Article
Acceptance Date Nov 25, 2016
Online Publication Date Jan 18, 2017
Publication Date Jan 20, 2017
Deposit Date Jan 25, 2017
Publicly Available Date Jan 18, 2018
Journal ChemSusChem
Print ISSN 1864-5631
Electronic ISSN 1864-564X
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 10
Issue 2
Pages 363-371
DOI https://doi.org/10.1002/cssc.201601553
Public URL https://durham-repository.worktribe.com/output/1387533

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Copyright Statement
This is the peer reviewed version of the following article: J. Wang, H. Zhang, M. R. C. Hunt, A. Charles, J. Tang, O. Bretcanu, D. Walker, K. T. Hassan, Y. Sun, L. Šiller, ChemSusChem 2017, 10(2), 363-371, which has been published in final form at https://doi.org/10.1002/cssc.201601553. This article may be used for non-commercial purposes in accordance With Wiley-VCH Terms and Conditions for self-archiving.






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