Optimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteries

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dc.contributor.authorZou, Jizhao
dc.contributor.authorNiu, Yuan
dc.contributor.authorTu, Wenxuan
dc.contributor.authorZhang, Qi
dc.contributor.authorYao, Yuechao
dc.contributor.authorZeng, Shao-Zhong
dc.contributor.authorLan, Tongbin
dc.contributor.authorWu, Hongliang
dc.contributor.authorZeng, Xierong
dc.contributor.authorZeng, Xierong
dc.date.accessioned2020-01-10T10:52:52Z
dc.date.available2020-01-10T10:52:52Z
dc.date.issued2019-10-14
dc.description.abstractHierarchical clews of carbon nanobelts (CsCNBs) with ultrahigh specific surface area (2300 m2 g−1) and large pore volume (up to 1.29 cm3 g−1) has been successfully fabricated through carbonization and KOH activation of phenolic resin based nanobelts. The product possesses hierarchically porous structure, three-dimensional conductive network framework, and polar oxygen-rich groups, which are very befitting to load sulfur leading to excellent cycling stability of lithium-sulfur batteries. The composites of CsCNBs/sulfur exhibit an ultrahigh initial discharge capacity of 1245 mA h g−1 and ultralow capacity decay rate as low as 0.162% per cycle after 200 cycles at 0.1 C. Even at high current rate of 4 C, the cells still display a high initial discharge capacity (621 mA h g−1) and ultralow capacity decay rate (only 0.039% per cycle) after 1000 cycles. These encouraging results indicate that polar oxygen-containing functional groups are important for improving the electrochemical performance of carbons. The oxygen-doped carbon nanobelts have excellent energy storage potential in the field of energy storage.en_UK
dc.identifier.citationZou J, Niu Y, Tu W, et al., (2019) Optimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteries. Journal of The Electrochemical Society, Volume 166, Issue 14, January 2019, pp. A3464-A3473en_UK
dc.identifier.issn0013-4651
dc.identifier.urihttps://doi.org/10.1149/2.1111914jes
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14906
dc.language.isoenen_UK
dc.publisherElectrochemical Societyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectcarbon nanobeltsen_UK
dc.subjectLi-S batteriesen_UK
dc.titleOptimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteriesen_UK
dc.typeArticleen_UK

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