Decoration of Titanate Nanowires and Nanotubes by Gold Nanoparticles: XPS, HRTEM and XRD Characterization

J. Kiss; P. Pusztai; L. Óvári; K. Baán; G. Merza; A. Erdöhelyi; A. Kukovecz; Z. Kónya

doi:10.1380/ejssnt.2014.252

Conference -ACSIN-12&ICSPM21-

Decoration of Titanate Nanowires and Nanotubes by Gold Nanoparticles: XPS, HRTEM and XRD Characterization

J. Kiss, P. Pusztai, L. Óvári, K. Baán, G. Merza, A. Erdöhelyi, A. Kukovecz, Z. Kónya

Author information

J. Kiss
Department of Physical Chemistry and Materials Science, University of Szeged
MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged
P. Pusztai
Department of Applied and Environmental Chemistry, University of Szeged
L. Óvári
MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged
K. Baán
Department of Physical Chemistry and Materials Science, University of Szeged
G. Merza
Department of Physical Chemistry and Materials Science, University of Szeged
A. Erdöhelyi
Department of Physical Chemistry and Materials Science, University of Szeged
A. Kukovecz
Department of Applied and Environmental Chemistry, University of Szeged
MTA-SZTE 　Lendulet" Porous Nanocomposites Research Group, University of Szeged
Z. Kónya
MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged
Department of Applied and Environmental Chemistry, University of Szeged

Keywords: Titanate nanowire, Titanate nanotube, Gold nanoparticles, X-ray photoelectron spectroscopy, Electron microscopy, X-ray diffraction

JOURNAL FREE ACCESS

2014 Volume 12 Pages 252-258

DOI https://doi.org/10.1380/ejssnt.2014.252

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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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