https://scholars.lib.ntu.edu.tw/handle/123456789/626297
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Ko Y.-C | en-US |
dc.contributor.author | Hsu C.-H | en-US |
dc.contributor.author | Lo C.-A | en-US |
dc.contributor.author | Wu C.-M | en-US |
dc.contributor.author | Yu H.-L | en-US |
dc.contributor.author | Hsu C.-H | en-US |
dc.contributor.author | Lin H.-P | en-US |
dc.contributor.author | CHUNG-YUAN MOU | en-US |
dc.contributor.author | Wu H.-L. | en-US |
dc.creator | Ko Y.-C;Hsu C.-H;Lo C.-A;Wu C.-M;Yu H.-L;Hsu C.-H;Lin H.-P;Mou C.-Y;Wu H.-L. | - |
dc.date.accessioned | 2022-12-14T03:44:56Z | - |
dc.date.available | 2022-12-14T03:44:56Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 21680485 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85127605656&doi=10.1021%2facssuschemeng.1c08196&partnerID=40&md5=a8475079cfe98c018c1b6b9768363981 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/626297 | - |
dc.description.abstract | Lithium-sulfur (Li-S) batteries receive great attention due to their high theoretical energy density and low cost. However, the sulfur-carbon cathode suffers from the polysulfide dissolution during cycling, and the severe shuttle effect limits the practical application of Li-S batteries. In this work, a carbon material (XU76 carbon) derived from industry-residual petroleum was synthesized with a simple and low-cost method. Nitrogen adsorption, small-angle neutron scattering (SANS), adsorption kinetics, and UV-vis spectroscopy results show that the interconnected micromesopores in XU76 could act as a reservoir and trap polysulfide intermediates efficiently. The XU76 carbon with high surface area (∼1005 m2g-1), good electric conductivity, good ion transport, and optimized distribution of interconnected micromesopores is used as the sulfur host for trapping polysulfide intermediates and advancing sulfur redox kinetics. The Li-S battery with the sulfur-XU76 carbon cathode gives an initial discharge capacity of ∼1200 mAh g-1in the initial cycle and reversible capacity of ∼700 mAh g-1after 100 cycles at a C rate of 0.1 C while the Li-S battery with the sulfur-KB carbon cathode only delivers a discharge capacity of 400 mAh g-1after 100 cycles. Also, a discharge capacity of 462 mAh g-1is obtained after 200 cycles at a high C rate (1 C). The detailed reaction mechanism of sulfur-carbon cathodes is systematically studied at high C rates using operando Raman and S K-edge X-ray absorption spectroscopy. © 2022 American Chemical Society. All rights reserved. | - |
dc.relation.ispartof | ACS Sustainable Chemistry and Engineering | - |
dc.subject | Lithium-sulfur battery; Mesoporous and microporous carbon; Operando Raman spectroscopy; Petroleum pitch; Sulfur redox kinetics | - |
dc.subject.other | Cathodes; Costs; Gas adsorption; Kinetics; Lithium batteries; Lithium compounds; Microporosity; Neutron scattering; Polysulfides; Reaction rates; Sulfur; Ultraviolet visible spectroscopy; Carbon cathode; Lithium/sulfur batteries; Mesoporous carbon; Microporous carbons; Operando; Operando raman spectroscopy; Petroleum pitch; Polysulphides; Redox kinetics; Sulphur redox kinetic; Lithium sulfur batteries | - |
dc.title | Interconnected Microporous and Mesoporous Carbon Derived from Pitch for Lithium-Sulfur Batteries | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acssuschemeng.1c08196 | - |
dc.identifier.scopus | 2-s2.0-85127605656 | - |
dc.relation.pages | 4462-4472 | - |
dc.relation.journalvolume | 10 | - |
dc.relation.journalissue | 14 | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Chemistry | - |
crisitem.author.dept | Center for Condensed Matter Sciences | - |
crisitem.author.orcid | 0000-0001-7060-9899 | - |
crisitem.author.parentorg | College of Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 化學系 |
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