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Structure of sputtered Co-Se thin films prepared for an application in catalysis

TitleStructure of sputtered Co-Se thin films prepared for an application in catalysis
Publication TypeJournal Article
Year of Publication2006
AuthorsZhu, L, Susac, D, Lam, A, Teo, M, Wong, PC, Bizzotto, D, Campbell, SA, Parsons, RR, Mitchell, KAR
JournalJournal of Solid State Chemistry
Volume179
Pagination3942-3948
Date PublishedDec
ISBN Number0022-4596
Abstract

Co-Se thin films prepared by magnetron sputtering have shown significant activity for the oxygen reduction reaction. One sample, after sectioning by ultramicrotomy, was studied by high-resolution scanning transmission electron microscopy (HRSTEM) and scanning Auger microscopy (SAM), and X-ray diffraction (XRD) was used for characterizing further samples. These thin films were shown to have Co-Se nanocrystals embedded into Se-rich matrices. The TEM and XRD results were consistent with the nanocrystallites being non-stoichiometric with structures related to those of monoclinic Co1-xSe (x = 0.125-0.25). (c) 2006 Elsevier Inc. All rights reserved.

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