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dc.contributor.author김현우-
dc.date.accessioned2018-04-02T07:32:29Z-
dc.date.available2018-04-02T07:32:29Z-
dc.date.issued2013-03-
dc.identifier.citationNanotechnology, 2013, 24(14), 145602en_US
dc.identifier.issn0957-4484-
dc.identifier.urihttp://iopscience.iop.org/article/10.1088/0957-4484/24/14/145602/meta-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/54910-
dc.description.abstractWe have successfully fabricated single- and few-layer mica nanosheets, by means of using a solvothermal method in conjunction with a microwave irradiated expansion process. In the solvothermal process, dissolved potassium ions were intercalated onto the interlayer space of the mica. Following this, microwave irradiation facilitates the exfoliation of individual nanosheets. The synthesized products were characterized by field emission scanning electron microscopy, transmission electron microscopy (TEM), atomic force microscopy (AFM), x-ray diffraction, x-ray photoelectron spectroscopy (XPS), and Raman spectroscopy measurements. AFM and TEM studies claimed the existence of single-layer mica. High-resolution TEM (HR-TEM) investigations revealed that the exfoliated product corresponded to a crystalline mica structure, being comprised of Si, Al, O, and K elements. XPS spectra exhibited the major constituent peaks, including O 1s, Si 2p, Al 2p, and K 2p. In addition, C atomic concentration has been slightly increased by the contamination during exfoliation, presumably due to the increase of the exposed mica surface. The C 1s XPS spectra revealed that the C?C bonding in organic surface contaminants was broken, whereas the Si?C bonding was enhanced, by the exfoliation process. The O 1s XPS spectra revealed that the Si?O bonding in mica was broken, generating the O?Si?C bonding. This study paves the way towards the fabrication of single- or few-layer inorganic nanosheets of desired materials, via a convenient and efficient route.en_US
dc.description.sponsorshipThis research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology (2011-0009946).en_US
dc.language.isoenen_US
dc.publisherIOP Publishing LTDen_US
dc.subjectCATALYTIC APPLICATIONSen_US
dc.subjectINTERCALATIONen_US
dc.subjectEXFOLIATIONen_US
dc.subjectMUSCOVITEen_US
dc.subjectCRYSTALSen_US
dc.subjectSURFACESen_US
dc.subjectCATIONSen_US
dc.subjectFILMSen_US
dc.subjectXPSen_US
dc.titleSynthesis and characterization of single- and few-layer mica nanosheets by the microwave-assisted solvothermal approachen_US
dc.typeArticleen_US
dc.relation.no14-
dc.relation.volume24-
dc.identifier.doi10.1088/0957-4484/24/14/145602-
dc.relation.page1-2-
dc.relation.journalNANOTECHNOLOGY-
dc.contributor.googleauthorTran Van Khai-
dc.contributor.googleauthorNa, Han Gil-
dc.contributor.googleauthorKwak, Dong Sub-
dc.contributor.googleauthorKwon, Yong Jung-
dc.contributor.googleauthorHam, Heon-
dc.contributor.googleauthorShim, Kwang Bo-
dc.contributor.googleauthorKim, Hyoun Woo-
dc.relation.code2007206915-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.pidhyounwoo-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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