Persulfurated Coronene: A New Generation of “Sulflower”Renhao Dong, Martin Pfeffermann, Dmitry Skidin, Faxing Wang, Yubin Fu, Akimitsu Narita, Matteo Tommasini, Francesca MorescoGianaurelio Cuniberti, Reinhard BergerKlaus Müllen, Xinliang Fengpp 2168–2171Publication Date (Web): January 27,

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• 刊名：Journal of the American Chemical Society
• 出版年：2017
• 出版时间：February 15, 2017
• 年：2017
• 卷：139
• 期：6
• 全文大小：392K
• ISSN：1520-5126

文摘

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 gup>–1up> after 120 cycles at 0.6 C with a high-capacity retention of 90%.