Wang, Jiabin, Zhang, Han, Hunt, Michael R. C., Charles, Alasdair, Tang, Jie, Bretcanu, Oana, Walker, David, Hassan, Khalil T., Sun, Yige and Šiller, Lidija (2017) Synthesis and characterisation of reduced graphene oxide/bismuth composite for electrodes in electrochemical energy storage devices. ChemSusChem, 10 (2). pp. 363-371. doi:10.1002/cssc.201601553

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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.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Electrochemistry, Nanotechnology, Graphene, Bismuth compounds, Electric batteries
Journal or Publication Title:	ChemSusChem
Publisher:	Wiley
ISSN:	1864-5631
Official Date:	20 January 2017
Dates:	Date Event 20 January 2017 Published 18 January 2017 Available 31 October 2016 Accepted 31 October 2016 Submitted
Date of first compliant deposit:	6 February 2017
Volume:	10
Number:	2
Page Range:	pp. 363-371
DOI:	10.1002/cssc.201601553
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	University of Newcastle upon Tyne. School of Chemical Engineering and Advanced Materials, Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/K503885/1 (EPSRC)

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