DC Field | Value | Language |
---|---|---|
dc.contributor.author | Tae-Lin Ha | - |
dc.contributor.author | Jin Goo Kim | - |
dc.contributor.author | Soo Min Kim | - |
dc.contributor.author | Lee, IS | - |
dc.date.accessioned | 2016-03-31T08:46:41Z | - |
dc.date.available | 2016-03-31T08:46:41Z | - |
dc.date.created | 2013-02-27 | - |
dc.date.issued | 2013-01-30 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.other | 2013-OAK-0000026584 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/16027 | - |
dc.description.abstract | Annealing of MnO@SiO2 nanospheres in a reducing gas environment resulted in the transformation of the core-shell structure into a hollow structure as a result of outward diffusion of MnO species into the thermodynamically more stable silicate phase. When the hollow silicate nanospheres were oxidized, the interior cavities were refilled with a Mn3O4 phase segregated from the silicate phase, and the hollow structure reverted to the initial core-shell structure. More interestingly, when catalytically active Pt nanocrystals were introduced into the manganese oxide/silica system, the Mn3O4 was readily reduced to the chemically reactive MnO, even at low temperature, which enabled reconversion of the solid nanospheres with a Mn3O4 core to hollow nanostructures during reductive annealing. Therefore, when MnO@SiO2/Pt(II) nanospheres were subjected to an oxidation/reduction cycle by repeatedly switching the flowing gas between air and hydrogen, the nanospheres underwent a reversible change between solid and hollow structures, depending on the gas environment. The solid-to-hollow-to-solid transformation was successfully cycled many times simply by repeatedly switching the flowing gas during annealing. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ACS | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.subject | LITHIUM-ION BATTERIES | - |
dc.subject | DRUG-DELIVERY | - |
dc.subject | CHEMICAL-TRANSFORMATIONS | - |
dc.subject | THERMODYNAMIC PROPERTIES | - |
dc.subject | FE3O4 NANOPARTICLES | - |
dc.subject | NI NANOPARTICLES | - |
dc.subject | GENERAL STRATEGY | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | METAL | - |
dc.subject | NANOREACTORS | - |
dc.title | Reversible and Cyclical Transformation between Solid and Hollow Nanostructures in the Confined Reaction of Manganese Oxide and Silica within a Nano-sized Sphere | - |
dc.type | Article | - |
dc.contributor.college | 화학과 | - |
dc.identifier.doi | 10.1021/JA309142J | - |
dc.author.google | Ha, TL | - |
dc.author.google | Kim, JG | - |
dc.author.google | Kim, SM | - |
dc.author.google | Lee, IS | - |
dc.relation.volume | 135 | - |
dc.relation.issue | 4 | - |
dc.relation.startpage | 1378 | - |
dc.relation.lastpage | 1385 | - |
dc.contributor.id | 10179922 | - |
dc.relation.journal | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.135, no.4, pp.1378 - 1385 | - |
dc.identifier.wosid | 000314492500039 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 1385 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1378 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 135 | - |
dc.contributor.affiliatedAuthor | Jin Goo Kim | - |
dc.contributor.affiliatedAuthor | Lee, IS | - |
dc.identifier.scopusid | 2-s2.0-84873879792 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 20 | - |
dc.description.scptc | 17 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CHEMICAL-TRANSFORMATIONS | - |
dc.subject.keywordPlus | THERMODYNAMIC PROPERTIES | - |
dc.subject.keywordPlus | GENERAL STRATEGY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | STATE | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
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