Coronene: A New Generation of “Sulflower”
Posted on 2017-01-27 - 00:00
We report the first synthesis of a persulfurated polycyclic aromatic hydrocarbon (PAH) as a next-generation “sulflower.” In this novel PAH, disulfide units establish an all-sulfur periphery around a coronene core. The structure, electronic properties, and redox behavior were investigated by microscopic, spectroscopic and electrochemical methods and supported by density functional theory. The sulfur-rich character of persulfurated coronene renders it a promising cathode material for lithium–sulfur batteries, displaying a high capacity of 520 mAh g–1 after 120 cycles at 0.6 C with a high-capacity retention of 90%.
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Dong, Renhao; Pfeffermann, Martin; Skidin, Dmitry; Wang, Faxing; Fu, Yubin; Narita, Akimitsu; et al. (2017): Persulfurated Coronene: A New Generation of “Sulflower”. ACS Publications. Collection. https://doi.org/10.1021/jacs.6b12630
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sulflowerall-sulfur peripheryretentionnovel PAHdisulfide unitshydrocarbonredox behaviorelectrochemical methodssulfur-rich charactercapacitydensitypersulfurated polycyclic0.6 CmAh120 cyclespersulfurated coronenesynthesisNew Generationcoronene corespectroscopiclithiumPersulfurated CoroneneSulflowerbatteriecathode materialnext-generation