DC Field | Value | Language |
---|---|---|
dc.contributor.author | KWON, OHHUN | - |
dc.contributor.author | SENGODAN, SIVAPRAKASH | - |
dc.contributor.author | KIM, KYEOUNGHAK | - |
dc.contributor.author | KIM, GIHYEON | - |
dc.contributor.author | JEONG, HU YOUNG | - |
dc.contributor.author | SHIN, JEEYOUNG | - |
dc.contributor.author | JU, YOUNG-WAN | - |
dc.contributor.author | HAN, JEONG WOO | - |
dc.contributor.author | KIM, GUNTAE | - |
dc.date.accessioned | 2019-04-07T18:56:36Z | - |
dc.date.available | 2019-04-07T18:56:36Z | - |
dc.date.created | 2019-03-19 | - |
dc.date.issued | 2017-06-28 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/96124 | - |
dc.description.abstract | In perovskites, exsolution of transition metals has been proposed as a smart catalyst design for energy applications. Although there exist transition metals with superior catalytic activity, they are limited by their ability to exsolve under a reducing environment. When a doping element is present in the perovskite, it is often observed that the surface segregation of the doping element is changed by oxygen vacancies. However, the mechanism of co-segregation of doping element with oxygen vacancies is still an open question. Here we report trends in the exsolution of transition metal (Mn, Co, Ni and Fe) on the PrBaMn2O5-delta layered perovskite oxide related to the co-segregation energy. Transmission electron microscopic observations show that easily reducible cations (Mn, Co and Ni) are exsolved from the perovskite depending on the transition metal-perovskite reducibility. In addition, using density functional calculations we reveal that co-segregation of B-site dopant and oxygen vacancies plays a central role in the exsolution. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.relation.isPartOf | Nature Communications | - |
dc.title | Exsolution trends and co-segregation aspects of self-grown catalyst nanoparticles in perovskites | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/ncomms15967 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nature Communications, v.8, pp.15967 | - |
dc.identifier.wosid | 000404226300001 | - |
dc.citation.startPage | 15967 | - |
dc.citation.title | Nature Communications | - |
dc.citation.volume | 8 | - |
dc.contributor.affiliatedAuthor | KIM, KYEOUNGHAK | - |
dc.contributor.affiliatedAuthor | HAN, JEONG WOO | - |
dc.identifier.scopusid | 2-s2.0-85021645514 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CHEMICAL LOOPING PROCESS | - |
dc.subject.keywordPlus | PURE HYDROGEN-PRODUCTION | - |
dc.subject.keywordPlus | IN-SITU EXSOLUTION | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | THERMODYNAMIC POSSIBILITIES | - |
dc.subject.keywordPlus | DEFICIENT PEROVSKITE | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | NICKEL | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
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