Full metadata record

DC FieldValueLanguage
dc.contributor.author정영은-
dc.contributor.author아닐쿠마-
dc.contributor.author최희락-
dc.contributor.author이관영-
dc.contributor.author하헌필-
dc.date.accessioned2015-12-03T02:06:38Z-
dc.date.available2015-12-03T02:06:38Z-
dc.date.issued201511-
dc.identifier.citationVOL 15, NO 11, 8494-8501-
dc.identifier.issn15334880-
dc.identifier.other45021-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/50463-
dc.description.abstractIn this study, catalytic activity and thermal stability of the arc plasma deposited (APD) Pt nano-particles on Al2O3 and CeO2–Al2O3 were compared with that of the conventionally prepared Pt/Al2O3. All the catalysts were characterized by BET-surface area, transmission electron microscopy, X-ray photoelectron spectroscopy, CO-pulse chemisorption, H2-temperarture programmed reduction and X-ray absorption near edge spectroscopy. Through the quantum chemical calculations of different metal oxide support, CeO2 was identified as a suitable anchoring material with high energy level between the Pt species (Pt0 and PtO x ) on ceria. Subsequently, the results of XPS and XANES revealed the presence of abundant Pt0 metal species in APD catalysts. The addition of ceria to Al2O3 support enhanced the dispersion of Pt nano-particles. The H2-TPR of Pt/CeO2–Al2O3 (APD) catalyst showed high-temperature reduction peaks corresponding to the interaction of Pt with ceria on alumina by Pt–O–Ce. Consequently, the Pt nano-particles deposited on CeO2–Al2O3 by APD attained strong thermal resistance at high temperatures. In addition, superior catalytic activities for CO and C3H6 oxidation and NO x reduction were obtained for the Pt/CeO2– Al2O3 (APD) catalyst.-
dc.publisherJournal of nanoscience and nanotechnology-
dc.subjectPt nano particle-
dc.subjectCeria-
dc.subjectQCC-
dc.subjectXANES-
dc.subjectTEM-
dc.subjectAPD-
dc.titleCatalytic Activity and Thermal Stability of Arc Plasma Deposited Pt Nano-Particles on CeO2-Al2O3-
dc.typeArticle-
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE