NDLI: Comparison of reduction products from graphite oxide and graphene oxide for anode applications in lithium-ion batteries and sodium-ion batteries

Content Provider	Royal Society of Chemistry (RSC)
Author	Yuan, Jinshi Sun, Yige Ozawa, Kiyoshi Zhu, Da-Ming Zhang, Kun Li, Jing Qin, Lu-Chang Tang, Jie
Copyright Year	2017
Abstract	Hydrazine-reduced graphite oxide and graphene oxide were synthesized to compare their performances as anode materials in lithium-ion batteries and sodium-ion batteries. Reduced graphite oxide inherits the layer structure of graphite, with an average spacing between neighboring layers (d-spacing) of 0.374 nm; this exceeds the d-spacing of graphite (0.335 nm). The larger d-spacing provides wider channels for transporting lithium ions and sodium ions in the material. We showed that reduced graphite oxide as an anode in lithium-ion batteries can reach a specific capacity of 917 mA h g−1, which is about three times of 372 mA h g−1, the value expected for the LiC6 structures on the electrode. This increase is consistent with the wider d-spacing, which enhances lithium intercalation and de-intercalation on the electrodes. The electrochemical performance of the lithium-ion batteries and sodium-ion batteries with reduced graphite oxide anodes show a noticeable improvement compared to those with reduced graphene oxide anodes. This improvement indicates that reduced graphite oxide, with larger interlayer spacing, has fewer defects and is thus more stable. In summary, we found that reduced graphite oxide may be a more favorable form of graphene for the fabrication of electrodes for lithium-ion and sodium-ion batteries and other energy storage devices.
Starting Page	2585
Ending Page	2595
Page Count	11
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	9
Issue Number	7
Journal	Nanoscale
DOI	10.1039/c6nr07650e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Lithium-ion battery Graphite oxide Electrode Anode Sodium Graphene Graphite Electrochemistry Lithium
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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