TY  - JOUR
AU  - Felten, A.
AU  - Ghijsen, J.
AU  - Pireaux, J.-J.
AU  - Drube, W.
AU  - Johnson, R. L.
AU  - Liang, D.
AU  - Hecq, M.
AU  - Van Tendeloo, G.
AU  - Bittencourt, C.
AU  - DESY
TI  - Electronic structure of Pd nanoparticles on carbon nanotubes
JO  - Micron
VL  - 40
SN  - 0968-4328
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - PHPPUBDB-7294
SP  - 79
PY  - 2009
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:18378149
UR  - <Go to ISI:>//WOS:000261420900015
DO  - DOI:10.1016/j.micron.2008.01.013
UR  - https://bib-pubdb1.desy.de/record/87249
ER  -