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DC Field | Value | Language |
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dc.citation.endPage | 12259 | - |
dc.citation.number | 25 | - |
dc.citation.startPage | 12255 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 115 | - |
dc.contributor.author | Lee, Myeong-Hee | - |
dc.contributor.author | Kim, Tae-Hee | - |
dc.contributor.author | Kim, Young Soo | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.date.accessioned | 2023-12-22T06:09:25Z | - |
dc.date.available | 2023-12-22T06:09:25Z | - |
dc.date.created | 2013-06-13 | - |
dc.date.issued | 2011-06 | - |
dc.description.abstract | Tunable precipitation strategy to control the shape of nanoparticles of a three-component system is presented. The strategy is devised from understanding the effects of precursor addition sequences on the morphology of resultant precipitates. LiFePO4, one of the most potential candidate as a cathode material of lithium ion batteries for electric vehicles, was used as a representative model of the three (Li, Fe, and PO4)-component system. According to the precursor addition sequence, three different precipitation methods were adopted: coprecipitation (Copr) and two different types of sequential precipitations (Seq1 and Seq2). Solubility product (K-sp) of intermediate precipitates (Li3PO4 and Fe-3(PO4)(2)) is the key parameter to help the precipitation processes understood. In Copr, the intermediate precipitates are formed simultaneously under K-sp-governed competition. In Seql and Seq2, Li3PO4 precipitates prior to Fe-3(PO4)(2). When Fe2+ is introduced into the suspension of Li3PO4, the preformed precipitate is sacrificed to supply PO43- for Fe-3(PO4)(2) precipitation due to the stronger tendency (smaller value of K-sp) of precipitation of Fe-3(PO4)(2). Also, the interaction between a cationic surfactant and PO43- makes the difference between Seq1 and Seq2. As a conclusion of the effects of precursor sequence, the shape of particles spans from spherical nanoparticles through a hollow sphere secondary structure of the same nanoparticles to nanoplates. Each own morphology developed by different precipitation methods leads to different intercalation/deintercalation behavior of lithium ions in conventional rechargeable battery cells. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.115, no.25, pp.12255 - 12259 | - |
dc.identifier.doi | 10.1021/jp201476z | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.scopusid | 2-s2.0-79959527310 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/3222 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79959527310 | - |
dc.identifier.wosid | 000291896000003 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Precipitation Revisited: Shape Control of LiFePO4 Nanoparticles by Combinatorial Precipitation | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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