Nitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles as sulfur encapsulator for high-performance lithium/sulfur batteries

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dc.contributor.authorZhao, Yan
dc.contributor.authorLiu, Zhengjun
dc.contributor.authorSun, Liancheng
dc.contributor.authorZhang, Yongguang
dc.contributor.authorFeng, Yuting
dc.contributor.authorWang, Xin
dc.contributor.authorKurmanbayeva, Indira
dc.contributor.authorBakenov, Zhumabay
dc.date.accessioned2018-11-09T06:21:14Z
dc.date.available2018-11-09T06:21:14Z
dc.date.issued2018-06
dc.description.abstractNitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles (ZnO@NCNT) were prepared via a sol–gel route as sulfur encapsulator for lithium/sulfur (Li/S) batteries. The electrochemical properties of the S/ZnO@NCNT composite cathode were evaluated in Li/S batteries. It delivered an initial capacity of 1032 mAh·g−1 at a charge/discharge rate of 0.2C and maintained a reversible capacity of 665 mAh·g−1 after 100 cycles. The coulombic efficiency of the cathode remains unchanged above 99%, showing stable cycling performance. X-ray photoelectron spectroscopy analysis confirmed the formation of S–Zn and S–O bonds in the composite. This indicates that an enhanced cycling and rate capability of the S/ZnO@NCNT composite could be ascribed to advantages of the ZnO@NCNT matrix. In the composite, the active ZnO-rich surfaces offer a high sulfur-bonding capability and the NCNT core acts as a conductive framework providing pathways for ion and electron transport. The as-prepared S/ZnO@NCNT composite is a promising cathode material for Li/S batteries.en_US
dc.identifier.citationYan Zhao, Zhengjun Liu, Liancheng Sun, Yongguang Zhang, Yuting Feng, Xin Wang, Indira Kurmanbayeva and Zhumabay Bakenov. Nitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles as sulfur encapsulator for high-performance lithium/sulfur batteries. 2018. Beilstein Journal of Nanotechnologyen_US
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/3614
dc.language.isoenen_US
dc.publisherBeilstein Journal of Nanotechnologyen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectNitrogen-doped carbon nanotubesen_US
dc.titleNitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles as sulfur encapsulator for high-performance lithium/sulfur batteriesen_US
dc.typeArticleen_US
workflow.import.sourcescience

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