e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
Conference -ACSIN-12&ICSPM21-
Decoration of Titanate Nanowires and Nanotubes by Gold Nanoparticles: XPS, HRTEM and XRD Characterization
J. KissP. PusztaiL. ÓváriK. BaánG. MerzaA. ErdöhelyiA. KukoveczZ. Kónya
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2014 Volume 12 Pages 252-258

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Abstract

Gold decorated titanate nanowires and nanotubes were investigated by XPS, XRD and HRTEM. XPS and UV-Vis diffuse reflectance results suggested that a certain part of gold underwent an ion exchange process. Higher gold loadings lead to the formation of nanosized-dispersed particles complexed to oxygen vacancies, with a diameter distribution of 1.5-10 nm. Gold additives catalyzed the transformation of the tube structure to anatase. Gold, however, stabilized the wire-like structure up to 873 K. [DOI: 10.1380/ejssnt.2014.252]

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