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Jeong, Hu Young
UCRF Electron Microscopy group
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DC Field Value Language
dc.citation.endPage 7045 -
dc.citation.number 17 -
dc.citation.startPage 7037 -
dc.citation.volume 141 - Chang, Hogeun - Kim, Byung Hyo - Jeong, Hu Young - Moon, Jeong Hee - Park, Minwoo - Shin, Kwangsoo - Chae, Sue In - Lee, Jisoo - Kang, Taegyu - Choi, Back Kyu - Yang, Jiwoong - Bootharaju, Megalamane S. - Song, Hyoin - An, Seong Hee - Park, Kyung Man - Oh, Joo Yeon - Lee, Hoonkyung - Kim, Myung Soo - Park, Jungwon - Hyeon, Taeghwan - 2023-12-21T19:10:14Z - 2023-12-21T19:10:14Z - 2019-05-23 - 2019-05 -
dc.description.abstract The formation of inorganic nanoparticles has been understood based on the classical crystallization theory described by a burst of nucleation, where surface energy is known to play a critical role, and a diffusion-controlled growth process. However, this nucleation and growth model may not be universally applicable to the entire nanoparticle systems because different precursors and surface ligands are used during their synthesis. Their intrinsic chemical reactivity can lead to a formation pathway that deviates from a classical nucleation and growth model. The formation of metal oxide nanoparticles is one such case because of several distinct chemical aspects during their synthesis. Typical carboxylate surface ligands, which are often employed in the synthesis of oxide nanoparticles, tend to continuously remain on the surface of the nanoparticles throughout the growth process. They can also act as an oxygen source during the growth of metal oxide nanoparticles. Carboxylates are prone to chemical reactions with different chemical species in the synthesis such as alcohol or amine. Such reactions can frequently leave reactive hydroxyl groups on the surface. Herein, we track the entire growth process of iron oxide nanoparticles synthesized from conventional iron precursors, iron-oleate complexes, with strongly chelating carboxylate moieties. Mass spectrometry studies reveal that the iron-oleate precursor is a cluster comprising a tri-iron-oxo core and carboxylate ligands rather than a mononuclear complex. A combinatorial analysis shows that the entire growth, regulated by organic reactions of chelating ligands, is continuous without a discrete nucleation step. -
dc.identifier.bibliographicCitation JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.141, no.17, pp.7037 - 7045 -
dc.identifier.doi 10.1021/jacs.9b01670 -
dc.identifier.issn 0002-7863 -
dc.identifier.scopusid 2-s2.0-85065058531 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000466987900035 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Molecular-Level Understanding of Continuous Growth from Iron-Oxo Clusters to Iron Oxide Nanoparticles -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary -
dc.relation.journalResearchArea Chemistry -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus ACETATE COMPLEXES -
dc.subject.keywordPlus ELECTRON-TRANSFER -
dc.subject.keywordPlus LOW-TEMPERATURE -
dc.subject.keywordPlus LIGAND-BINDING -
dc.subject.keywordPlus SINGLE-CRYSTAL -
dc.subject.keywordPlus MIXED-VALENCE -
dc.subject.keywordPlus NANOCRYSTALS -
dc.subject.keywordPlus CDSE -
dc.subject.keywordPlus MONODISPERSE -
dc.subject.keywordPlus NUCLEATION -


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