title: Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices.
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-1at a current density of 0.2 A g-1when 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.
authors.affiliation: School of Chemical Engineering and Advanced Materials, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
authors.forename: Jiabin
authors.initials: J
authors.lastname: Wang
authors.affiliation: 1D Nanomaterials Group, National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan.
authors.forename: Han
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Centre for Materials Physics, Department of Physics, Durham University, Durham, DH1 3LE, UK.
authors.forename: Michael R C
authors.initials: MR
authors.lastname: Hunt
authors.affiliation: School of Chemical Engineering and Advanced Materials, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
authors.forename: Alasdair
authors.initials: A
authors.lastname: Charles
authors.affiliation: 1D Nanomaterials Group, National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan.
authors.forename: Jie
authors.initials: J
authors.lastname: Tang
authors.affiliation: School of Mechanical Engineering, Stephenson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
authors.forename: Oana
authors.initials: O
authors.lastname: Bretcanu
authors.affiliation: Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
authors.forename: David
authors.initials: D
authors.lastname: Walker
authors.affiliation: School of Chemical Engineering and Advanced Materials, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
authors.forename: Khalil T
authors.initials: KT
authors.lastname: Hassan
authors.affiliation: 1D Nanomaterials Group, National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan.
authors.forename: Yige
authors.initials: Y
authors.lastname: Sun
authors.affiliation: School of Chemical Engineering and Advanced Materials, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
authors.forename: Lidija
authors.initials: L
authors.lastname: Šiller
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D004553:Electric Conductivity; D011211:Electric Power Supplies; D004563:Electrochemistry; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D007700:Kinetics; D053758:Nanoparticles / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D013696:Temperature
chemical_list: D010087:Oxides; D006108:Graphite; D001729:Bismuth
keywords: bismuth; composite materials; energy storage; nanotechnology; reduced graphene oxide