Generation and oxidation of aerosol deposited PdAg nanoparticles
Journal article, 2013
PdAg nanoparticles with a diameter of 10 nm have been generated by an aerosol particle method, and supported on a silica substrate. By using a combination of X-ray Energy Dispersive Spectroscopy and X-ray Photoelectron Spectroscopy it is shown that the size distribution of the particles is narrow and that the two metals form an alloy with a mixture of 75% Pd and 25% Ag. Under oxidizing conditions, Pd is found to segregate to the surface and a thin PdO like oxide is formed similar to the surface oxide previously reported on extended PdAg and pure Pd surfaces.
HPXPS
PdAg
Nanoparticles
Alloy
Author
S. Blomberg
Lund University
J. Gustafson
Lund University
N. M. Martin
Lund University
M. E. Messing
Lund University
K. Deppert
Lund University
Z. Liu
Lawrence Berkeley National Laboratory
R. Chang
Lawrence Berkeley National Laboratory
V. R. Fernandes
Norwegian University of Science and Technology (NTNU)
A. Borg
Norwegian University of Science and Technology (NTNU)
Henrik Grönbeck
Competence Centre for Catalysis (KCK)
Chalmers, Applied Physics, Chemical Physics
E. Lundgren
Lund University
Surface Science
0039-6028 (ISSN)
Vol. 616 186-191Subject Categories
Physical Chemistry
DOI
10.1016/j.susc.2013.06.005