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Synthesis and characterisation of reduced graphene oxide/bismuth composite for electrodes in electrochemical energy storage devices
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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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Official URL: http://dx.doi.org/10.1002/cssc.201601553
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 | ||||||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > 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: |
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| 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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