Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 6, Pages 2752-2757Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta10232a
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Funding
- Institute of Bioengineering and Nanotechnology (Biomedical Research Council, Agency for Science, Technology and Research (A*STAR), Singapore)
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Redox active organic molecules as cathode materials for lithium ion batteries are promising. However, these compounds are plagued by their high solubilities in electrolyte solution, leading to capacity decay and a short cycling life. Herein, we report nano-composites of hexaazatriphenylene (HAT) derivatives and graphene oxide (GO) (hexaazatrinaphthalene (HATN)/GO and hexaazatrinaphthalene tricarboxylic acid (HATNTA)/GO) as cathode materials for lithium ion batteries. HAT derivatives demonstrate strong p-p and H-bond interactions with GO, which remarkably suppress their dissolution in electrolyte, leading to significant improvement of their electrochemical performance.
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