A carbon-sulfur hybrid with pomegranate-like structure for lithium-sulfur batteries

Yanting Shi; Wei Lv; Shuzhang Niu; Yanbing He; Guangmin Zhou; Guohua Chen; Baohua Li; Quan-Hong Yang; Feiyu Kang

doi:10.1002/asia.201600070

A carbon-sulfur hybrid with pomegranate-like structure for lithium-sulfur batteries

Yanting Shi, Wei Lv^*, Shuzhang Niu, Yanbing He, Guangmin Zhou, Guohua Chen, Baohua Li, Quan-Hong Yang, Feiyu Kang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

Abstract

A carbon-sulfur hybrid with pomegranate-like core-shell structure, which demonstrates a high rate performance and relatively high cyclic stability, is obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS₂) and a following oxidation of FeS₂ to sulfur by HNO₃. Such a structure effectively protects the sulfur and leaves enough buffer space after Fe³⁺ removal and, at the same time, has an interconnected conductive network. The capacity of the obtained hybrid is 450 mA h g^-1 under the current density of 5 C. This work provides a simple strategy to design and prepare various high-performance carbon-sulfur hybrids for lithium-sulfur batteries. Pomegranate recipe: A carbon-sulfur hybrid with pomegranate-like core-shell structure was obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS₂), followed by oxidation of FeS₂ to sulfur by HNO₃. The hybrid displays a high rate performance and relatively high cyclic stability.

Original language	English
Pages (from-to)	1343-1347
Journal	Chemistry - An Asian Journal
Volume	11
Issue number	9
DOIs	https://doi.org/10.1002/asia.201600070
Publication status	Published - 6 May 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

carbon-sulfur hybrid
core-shell structure
FeS2
lithium-sulfur batteries
pomegranate-like structure

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/asia.201600070

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abstract = "A carbon-sulfur hybrid with pomegranate-like core-shell structure, which demonstrates a high rate performance and relatively high cyclic stability, is obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS2) and a following oxidation of FeS2 to sulfur by HNO3. Such a structure effectively protects the sulfur and leaves enough buffer space after Fe3+ removal and, at the same time, has an interconnected conductive network. The capacity of the obtained hybrid is 450 mA h g-1 under the current density of 5 C. This work provides a simple strategy to design and prepare various high-performance carbon-sulfur hybrids for lithium-sulfur batteries. Pomegranate recipe: A carbon-sulfur hybrid with pomegranate-like core-shell structure was obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS2), followed by oxidation of FeS2 to sulfur by HNO3. The hybrid displays a high rate performance and relatively high cyclic stability.",

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AU - Shi, Yanting

AU - Lv, Wei

AU - Niu, Shuzhang

AU - He, Yanbing

AU - Zhou, Guangmin

AU - Chen, Guohua

AU - Li, Baohua

AU - Yang, Quan-Hong

AU - Kang, Feiyu

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AB - A carbon-sulfur hybrid with pomegranate-like core-shell structure, which demonstrates a high rate performance and relatively high cyclic stability, is obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS2) and a following oxidation of FeS2 to sulfur by HNO3. Such a structure effectively protects the sulfur and leaves enough buffer space after Fe3+ removal and, at the same time, has an interconnected conductive network. The capacity of the obtained hybrid is 450 mA h g-1 under the current density of 5 C. This work provides a simple strategy to design and prepare various high-performance carbon-sulfur hybrids for lithium-sulfur batteries. Pomegranate recipe: A carbon-sulfur hybrid with pomegranate-like core-shell structure was obtained through carbonization of a carbon precursor in the presence of a sulfur precursor (FeS2), followed by oxidation of FeS2 to sulfur by HNO3. The hybrid displays a high rate performance and relatively high cyclic stability.

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A carbon-sulfur hybrid with pomegranate-like structure for lithium-sulfur batteries

Abstract

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Research Keywords

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