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Lee, Zonghoon
Atomic-Scale Electron Microscopy Lab.
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dc.citation.endPage 6 -
dc.citation.number 1 -
dc.citation.startPage 1 -
dc.citation.title Applied Microscopy -
dc.citation.volume 52 -
dc.contributor.author Lee, Minjeong -
dc.contributor.author Kim, Gyutae -
dc.contributor.author Jeong, Gyu Hyun -
dc.contributor.author Yoon, Aram -
dc.contributor.author Lee, Zonghoon -
dc.contributor.author Ryu, Gyeong Hee -
dc.date.accessioned 2023-12-21T13:13:16Z -
dc.date.available 2023-12-21T13:13:16Z -
dc.date.created 2022-12-29 -
dc.date.issued 2022-12 -
dc.description.abstract The process of encapsulating cobalt nanoparticles using a graphene layer is mainly direct pyrolysis. The encapsulation structure of hybrids prepared in this way improves the catalyst stability, which greatly reduces the leaching of non-metals and prevents metal nanoparticles from growing beyond a certain size. In this study, cobalt particles surrounded by graphene layers were formed by increasing the temperature in a transmission electron microscope, and they were analyzed using scanning transmission electron microscopy (STEM). Synthesized cobalt hydroxide nanosheets were used to obtain cobalt particles using an in-situ heating holder inside a TEM column. The cobalt nanoparticles are surrounded by layers of graphene, and the number of layers increases as the temperature increases. The interlayer spacing of the graphene layers was also investigated using atomic imaging. The success achieved in the encapsulation of metallic nanoparticles in graphene layers paves the way for the design of highly active and reusable heterogeneous catalysts for more challenging molecules. -
dc.identifier.bibliographicCitation Applied Microscopy, v.52, no.1, pp.1 - 6 -
dc.identifier.doi 10.1186/s42649-022-00076-z -
dc.identifier.issn 2287-5123 -
dc.identifier.scopusid 2-s2.0-85134239004 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/60696 -
dc.language 영어 -
dc.publisher 한국현미경학회 -
dc.title In-situ formation of co particles encapsulated by graphene layers -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.identifier.kciid ART002904229 -
dc.description.journalRegisteredClass scopus -
dc.description.journalRegisteredClass kci -
dc.subject.keywordAuthor Co particle -
dc.subject.keywordAuthor Encapsulation -
dc.subject.keywordAuthor Graphene -
dc.subject.keywordAuthor Co (OH)2 -
dc.subject.keywordAuthor STEM -

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