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  Formation, thermal stability, and surface composition of size-selected AuFe nanoparticles

Naitabdi, A., & Roldan Cuenya, B. (2007). Formation, thermal stability, and surface composition of size-selected AuFe nanoparticles. Applied Physics Letters, 91(11): 113110. doi:10.1063/1.2784957.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0006-DA58-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0006-DA59-1
Genre: Journal Article

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1.2784957.pdf (Publisher version), 747KB
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 Creators:
Naitabdi, A.1, Author
Roldan Cuenya, Beatriz1, Author           
Affiliations:
1Physics Department, University of Central Florida, ou_persistent22              

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 Abstract: The surface composition of isolated Au0.5Fe0.5 nanoparticles (NPs) synthesized by micelleencapsulation and supported on TiO2 (110) has been investigated. The study reveals thatphase-segregated structures are present after annealing at 300 ° C. A subsequent thermal treatmentat 700 ° C resulted in the formation of a AuFe alloy. At this temperature, a state characteristic of Fewas identified at the NPs’ surface. Annealing at 900 ° C resulted in the disappearance of the Fesurface state, which is attributed to Au segregation to the surface. The initial hexagonal NParrangement on the TiO2 (110) surface was preserved up to 900 ° C. At 1000 ° C, Au desorption wasobserved.

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Language(s): eng - English
 Dates: 2007-07-182007-08-232007-09-10
 Publication Status: Issued
 Pages: 3
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.2784957
 Degree: -

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Title: Applied Physics Letters
  Abbreviation : Appl. Phys. Lett.
Source Genre: Journal
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Publ. Info: Melville, NY : American Institute of Physics
Pages: 3 Volume / Issue: 91 (11) Sequence Number: 113110 Start / End Page: - Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223