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Article: Amylose-Derived Macrohollow Core and Microporous Shell Carbon Spheres as Sulfur Host for Superior Lithium-Sulfur Battery Cathodes

TitleAmylose-Derived Macrohollow Core and Microporous Shell Carbon Spheres as Sulfur Host for Superior Lithium-Sulfur Battery Cathodes
Authors
Keywordselectrochemical performance
amylose
biomass material
sulfur cathode
lithium-ion batteries
Issue Date2017
Citation
ACS Applied Materials and Interfaces, 2017, v. 9, n. 12, p. 10717-10729 How to Cite?
Abstract© 2017 American Chemical Society. Porous carbon can be tailored to great effect for electrochemical energy storage. In this study, we propose a novel structured spherical carbon with a macrohollow core and a microporous shell derived from a sustainable biomass, amylose, by a multistep pyrolysis route without chemical etching. This hierarchically porous carbon shows a particle distribution of 2-10 μm and a surface area of 672 m2g-1. The structure is an effective host of sulfur for lithium-sulfur battery cathodes, which reduces the dissolution of polysulfides in the electrolyte and offers high electrical conductivity during discharge/charge cycling. The hierarchically porous carbon can hold 48 wt % sulfur in its porous structure. The S@C hybrid shows an initial capacity of 1490 mAh g-1and retains a capacity of 798 mAh g-1after 200 cycles at a discharge/charge rate of 0.1 C. A capacity of 487 mAh g-1is obtained at a rate of 3 C. Both a one-step pyrolysis and a chemical-reagent-assisted pyrolysis are also assessed to obtain porous carbon from amylose, but the obtained carbon shows structures inferior for sulfur cathodes. The multistep pyrolysis and the resulting hierarchically porous carbon offer an effective approach to the engineering of biomass for energy storage. The micrometer-sized spherical S@C hybrid with different sizes is also favorable for high-tap density and hence the volumetric density of the batteries, opening up a wide scope for practical applications.
Persistent Identifierhttp://hdl.handle.net/10722/262888
ISSN
2023 Impact Factor: 8.3
2023 SCImago Journal Rankings: 2.058
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, Xiang-
dc.contributor.authorCheng, Xuanbing-
dc.contributor.authorGao, Mingxia-
dc.contributor.authorRen, Dawei-
dc.contributor.authorLiu, Yongfeng-
dc.contributor.authorGuo, Zhengxiao-
dc.contributor.authorShang, Congxiao-
dc.contributor.authorSun, Lixian-
dc.contributor.authorPan, Hongge-
dc.date.accessioned2018-10-08T09:28:43Z-
dc.date.available2018-10-08T09:28:43Z-
dc.date.issued2017-
dc.identifier.citationACS Applied Materials and Interfaces, 2017, v. 9, n. 12, p. 10717-10729-
dc.identifier.issn1944-8244-
dc.identifier.urihttp://hdl.handle.net/10722/262888-
dc.description.abstract© 2017 American Chemical Society. Porous carbon can be tailored to great effect for electrochemical energy storage. In this study, we propose a novel structured spherical carbon with a macrohollow core and a microporous shell derived from a sustainable biomass, amylose, by a multistep pyrolysis route without chemical etching. This hierarchically porous carbon shows a particle distribution of 2-10 μm and a surface area of 672 m2g-1. The structure is an effective host of sulfur for lithium-sulfur battery cathodes, which reduces the dissolution of polysulfides in the electrolyte and offers high electrical conductivity during discharge/charge cycling. The hierarchically porous carbon can hold 48 wt % sulfur in its porous structure. The S@C hybrid shows an initial capacity of 1490 mAh g-1and retains a capacity of 798 mAh g-1after 200 cycles at a discharge/charge rate of 0.1 C. A capacity of 487 mAh g-1is obtained at a rate of 3 C. Both a one-step pyrolysis and a chemical-reagent-assisted pyrolysis are also assessed to obtain porous carbon from amylose, but the obtained carbon shows structures inferior for sulfur cathodes. The multistep pyrolysis and the resulting hierarchically porous carbon offer an effective approach to the engineering of biomass for energy storage. The micrometer-sized spherical S@C hybrid with different sizes is also favorable for high-tap density and hence the volumetric density of the batteries, opening up a wide scope for practical applications.-
dc.languageeng-
dc.relation.ispartofACS Applied Materials and Interfaces-
dc.subjectelectrochemical performance-
dc.subjectamylose-
dc.subjectbiomass material-
dc.subjectsulfur cathode-
dc.subjectlithium-ion batteries-
dc.titleAmylose-Derived Macrohollow Core and Microporous Shell Carbon Spheres as Sulfur Host for Superior Lithium-Sulfur Battery Cathodes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acsami.7b00672-
dc.identifier.pmid28233993-
dc.identifier.scopuseid_2-s2.0-85016476075-
dc.identifier.volume9-
dc.identifier.issue12-
dc.identifier.spage10717-
dc.identifier.epage10729-
dc.identifier.eissn1944-8252-
dc.identifier.isiWOS:000398246900046-
dc.identifier.issnl1944-8244-

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