Disordered 3 D Multi-layer Graphene Anode Material from CO2for Sodium-Ion Batteries
Document Type
Article
Publication Date
1-1-2016
Department
Department of Materials Science and Engineering
Abstract
We report the application of disordered 3 D multi-layer graphene, synthesized directly from CO2gas through a reaction with Li at 550 °C, as an anode for Na-ion batteries (SIBs) toward a sustainable and greener future. The material exhibited a reversible capacity of ∼190 mA h g−1with a Coulombic efficiency of 98.5 % at a current density of 15 mA g−1. The discharge capacity at higher potentials ( > 0.2 V vs. Na/Na+) is ascribed to Na-ion adsorption at defect sites, whereas the capacity at low potentials ( < 0.2 V) is ascribed to intercalation between graphene sheets through electrochemical characterization, Raman spectroscopy, and small-angle X-ray scattering experiments. The disordered multi-layer graphene electrode demonstrated a great rate capability and cyclability. This novel approach to synthesize disordered 3 D multi-layer graphene from CO2gas makes it attractive not only as an anode material for SIBs but also to mitigate CO2emission.
Publication Title
ChemSusChem
Recommended Citation
Smith, K.,
Parrish, R.,
Wei, W.,
Liu, Y.,
Li, T.,
Hu, Y.,
&
Xiong, H.
(2016).
Disordered 3 D Multi-layer Graphene Anode Material from CO2for Sodium-Ion Batteries.
ChemSusChem,
9(12), 1397-1402.
http://doi.org/10.1002/cssc.201600117
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/2256
Publisher's Statement
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Publisher’s version of record: https://doi.org/10.1002/cssc.201600117