%0 Journal Article
%A Felten, A.
%A Ghijsen, J.
%A Pireaux, J.-J.
%A Drube, W.
%A Johnson, R. L.
%A Liang, D.
%A Hecq, M.
%A Van Tendeloo, G.
%A Bittencourt, C.
%A DESY
%T Electronic structure of Pd nanoparticles on carbon nanotubes
%J Micron
%V 40
%@ 0968-4328
%C New York, NY [u.a.]
%I Elsevier
%M PHPPUBDB-7294
%P 79
%D 2009
%X The effect of the oxygen plasma treatment on the electronic states of multi-wall carbon nanotubes (MWCNTs) is analyzed by X-ray photoemission measurements (XPS) and UPS, both using synchrotron radiation. It is found that the plasma treatment effectively grafts oxygen at the CNT-surface. Thereafter, the interaction between evaporated Pd and pristine or oxygen plasma-treated MWCNTs is investigated. Pd is found to nucleate at defective sites, whether initially present or introduced by oxygen plasma treatment. The plasma treatment induced a uniform dispersion of Pd clusters at the CNT-surface. The absence of additional features in the Pd 3d and C 1s core levels spectra testifies that no Pd-C bond is formed. The shift of the Pd 3d core level towards high-binding energy for the smallest clusters is attributed to the Coulomb energy of the charged final state.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:18378149
%U <Go to ISI:>//WOS:000261420900015
%R 10.1016/j.micron.2008.01.013
%U https://bib-pubdb1.desy.de/record/87249