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.

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.

Citation

Wang, J., Zhang, H., Hunt, M., Charles, A., Tang, J., Bretcanu, O., …Siller, L. (2017). Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices. ChemSusChem, 10(2), 363-371. https://doi.org/10.1002/cssc.201601553

• 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