Full metadata record

DC FieldValueLanguage
dc.contributor.author이해원-
dc.contributor.author이종호-
dc.contributor.author손지원-
dc.contributor.author윤경중-
dc.contributor.author홍종섭-
dc.contributor.authorShivendra Kumar Jaiswal-
dc.date.accessioned2016-05-24T08:25:55Z-
dc.date.available2016-05-24T08:25:55Z-
dc.date.issued2016-06-
dc.identifier.citationVOL 42, NO 8, 10366-10372-
dc.identifier.issn02728842-
dc.identifier.other46491-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/59228-
dc.description.abstractPerovskite-type materials containing metal and cerium cations have been used as catalysts, membranes, electrodes in fuel cells, and hydrogen pumps. The effect of strontium doping on the perovskite-type structure has been evaluated and effectively maintains the cubic structure of (Ba1&#8722-
dc.description.abstractxSrx)(Ce0.75Zr0.10Y0.15)O3&#8722-
dc.description.abstractδ. X-ray photoelectron spectroscopy (XPS) was performed on the oxidation states of barium, strontium, cerium, zirconium, yttrium and oxygen. With strontium doping, the oxidation state of cerium ions in 4+ increases and results in the decrease in oxygen vacancy concentration. These are attributed to the strong binding energy of (A/B)&#8211-
dc.description.abstractO bond which in turn, enhances the structural stability of electrolyte system. The free volume (Vf) is maximum for x=0.2 (Vf=33.1&Aring-
dc.description.abstract3) and then decreases with further strontium insertion. The optical absorption peaks are attributed to charge transfer transitions and energy band gap (increases from ~4.13 to ~4.35eV). However, the increase of band gap is only ~5% with partial replacement of barium by strontium. These characteristics are useful to make (Ba1&#8722-
dc.description.abstractδ a promising candidate for futuristic and reliable fuel cell technology.-
dc.publisherCeramics international-
dc.subjectSOFC-
dc.subjectPCFC-
dc.subjectElectrolyte-
dc.subjectoptical absrption-
dc.subjectXPS-
dc.titleOptical absorption and XPS studies of (Ba1-xSrx)(Ce0.75Zr0.10Y0.15)O3-δ electrolytes for protonic ceramic fuel cells-
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