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Advances in Materials Science and Engineering
Volume 2018, Article ID 4730192, 7 pages
https://doi.org/10.1155/2018/4730192
Research Article

Carbon Nanoparticle-Supported Pd Obtained by Solar Physical Vapor Deposition

Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor, Brasov 500036, Romania

Correspondence should be addressed to Cătălin Croitoru; or.vbtinu@urotiorc.c

Received 31 August 2017; Revised 14 November 2017; Accepted 6 December 2017; Published 15 February 2018

Academic Editor: Mikhael Bechelany

Copyright © 2018 Alexandru Pascu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Palladium supported on carbon nanoparticles has been obtained on a specially designed ceramic catalyst, obtained by thermal spraying on a copper substrate, starting from Pd/C targets. Solar physical vapor deposition in argon, an environment-friendly and energy-efficient alternative to arc or chemical vapor deposition, has been employed as a means of target vaporization at CNRS-PROMES facility in Odeillo, France. The obtained nanoparticles have a spherical-porous morphology with diameters ranging from 50 to 120 nm and specific sorption areas of 50,000 m2/g. The XRD diffractograms indicate the presence of dominatingly crystalline short-range ordered graphene oxide layers, in contrast with the amorphous Pd/C starting precursor. The presence of palladium (0.6% wt.) at the surface of the nanoparticles was proved by the EDX and XRD analyses, making the synthesized material useful in applications such as catalysis or gas sorption.