There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 134276 | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 432 | - |
dc.contributor.author | Devina, Winda | - |
dc.contributor.author | Cahyadi, Handi Setiadi | - |
dc.contributor.author | Albertina, Ingrid | - |
dc.contributor.author | Chandra, Christian | - |
dc.contributor.author | Park, Jae-Ho | - |
dc.contributor.author | Chung, Kyung Yoon | - |
dc.contributor.author | Chang, Wonyoung | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kim, Jaehoon | - |
dc.date.accessioned | 2023-12-21T14:23:31Z | - |
dc.date.available | 2023-12-21T14:23:31Z | - |
dc.date.created | 2022-04-15 | - |
dc.date.issued | 2022-03 | - |
dc.description.abstract | The use of carbon-based supports, such as graphene and porous carbon, is a well-established approach to overcome the rapid capacity fading issues associated with alloy-based anode materials in lithium-ion batteries (LIBs). However, adopting carbonaceous materials that typically exhibit a low density eventually diminishes the primary purpose of alloys as high-energy-density anode materials. In this study, we introduce three-dimensional hierarchically porous molybdenum carbide (PMC) with high energy density, robust mechanical strength, and high electronic conductivity, which make it a promising alternative support for suppressing the huge volume expansion of alloying-based materials. Carbon-coated, ultrasmall Bi nanodots with an average size of 6.4 nm are uniformly embedded on the PMC surface (denoted as C-Bi/PMC) by facilitating heterogeneous nucleation. When tested as an anode in an LIB, the C-Bi/PMC electrode exhibits a high reversible capacity of 422 mAh g(-1) at 50 mA g(-1), high-rate capacity of 268 mAh g(-1) at 1000 mA g(-1), and long-term stability of 400 mAh g-1 at 250 mA g-1 over 500 cycles followed by 0.002 mAh g(-1)& nbsp;decay per cycle at 5000 mA g(-1)& nbsp;over subsequent 1000 cycles. When paired with LiNi0.5Co0.2Mn0.3O2 cathode as full-cell LIBs, the C-Bi/PMC anode deliver high gravimetric and volumetric energy densities of 352 Wh kg(-1) and 563 Wh L-1, respectively. In-situ X-ray diffraction patterns captured during cycling reveal that the Li+-ion insertion mechanism in the voltage plateau region at 0.7-1.0 V consists of the intercalation between Bi layers followed by the formation of triclinic LiBi phase and the subsequent transition of triclinic LiBi to cubic Li3Bi phase. | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.432, pp.134276 | - |
dc.identifier.doi | 10.1016/j.cej.2021.134276 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.scopusid | 2-s2.0-85122231449 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/58409 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S1385894721058496?via%3Dihub | - |
dc.identifier.wosid | 000777268000005 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | High-energy-density carbon-coated bismuth nanodots on hierarchically porous molybdenum carbide for superior lithium storage | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Engineering, Chemical | - |
dc.relation.journalResearchArea | Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Bismuth | - |
dc.subject.keywordAuthor | Molybdenum carbide | - |
dc.subject.keywordAuthor | Salt template | - |
dc.subject.keywordAuthor | Anode | - |
dc.subject.keywordAuthor | Lithium-ion batteries | - |
dc.subject.keywordPlus | QUANTITATIVE PHASE-ANALYSIS | - |
dc.subject.keywordPlus | POWDER DIFFRACTION | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | LI-ION | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SPHERES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CONVERSION | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.