High-performance solid-solution potassium-ion intercalation mechanism of multilayered turbostratic graphene nanosheets
DC Field | Value | Language |
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dc.contributor.author | Um, Jiae | - |
dc.contributor.author | Yoon, Seung Uk | - |
dc.contributor.author | Kim, Hoseong | - |
dc.contributor.author | Youn, Beom Sik | - |
dc.contributor.author | Jin, Hyoung-Joon | - |
dc.contributor.author | Lim, Hyung-Kyu | - |
dc.contributor.author | Yun, Young Soo | - |
dc.date.accessioned | 2022-06-10T16:40:34Z | - |
dc.date.available | 2022-06-10T16:40:34Z | - |
dc.date.created | 2022-06-09 | - |
dc.date.issued | 2022-04 | - |
dc.identifier.issn | 2095-4956 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/141871 | - |
dc.description.abstract | The solid-solution reaction between an alkali cation and an active host material is known as a single-phase redox mechanism, and it is typically accompanied by a continuous voltage change. It is distinct from the typical alkali cation intercalation reaction at an equivalent site of the active host material, which exhibits a voltage plateau. Herein, we report an unusual solid-solution potassium-ion intercalation mechanism with a low-voltage plateau capacity on multilayered turbostratic graphene nanosheets (T-GNSs). Despite the disordered graphitic structure with a broad range of d-spacings (3.65-4.18 angstrom), the T-GNSs showed a reversible plateau capacity of similar to 200 mA h g(-1), which is higher than that of a well-ordered graphite nanoplate (similar to 120 mA h g(-1)). In addition, a sloping capacity of similar to 220 mA h g(-1) was delivered with the plateau capacity, and higher rate capabilities, better reversibility, and a more stable cycling performance were confirmed on the turbostratic microstructure. First-principles calculations suggest that the multitudinous lattice domains of the T-GNSs contain diverse intercalation sites with strong binding energies, which could be the origin of the high-performance solid-solution potassium-ion intercalation behavior when the turbostratic graphene stacks have a d-spacing smaller than that of equilibrium potassium-graphite intercalation compounds (5.35 angstrom). (C) 2021 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | DUAL-DOPED CARBON | - |
dc.subject | ANODE MATERIAL | - |
dc.subject | BATTERIES | - |
dc.title | High-performance solid-solution potassium-ion intercalation mechanism of multilayered turbostratic graphene nanosheets | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yun, Young Soo | - |
dc.identifier.doi | 10.1016/j.jechem.2021.11.027 | - |
dc.identifier.scopusid | 2-s2.0-85121104075 | - |
dc.identifier.wosid | 000781652500007 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ENERGY CHEMISTRY, v.67, pp.814 - 823 | - |
dc.relation.isPartOf | JOURNAL OF ENERGY CHEMISTRY | - |
dc.citation.title | JOURNAL OF ENERGY CHEMISTRY | - |
dc.citation.volume | 67 | - |
dc.citation.startPage | 814 | - |
dc.citation.endPage | 823 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Applied | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | DUAL-DOPED CARBON | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordAuthor | Turbostratic graphite | - |
dc.subject.keywordAuthor | Graphene nanosheet | - |
dc.subject.keywordAuthor | Defective carbon | - |
dc.subject.keywordAuthor | Anode | - |
dc.subject.keywordAuthor | Potassium-ion batteries | - |
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