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New composite material-multi-walled carbon nanotubes (MWCNTs) coated with thin iron films-have been prepared by MOCVD growth technique using iron pentacarbonyl as the iron source. Their structures and morphologies were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and thermal gravimetric analysis. The NEXAFS C1sand Fe2p-spectra of the composite materials MWCNTs-pyrolytic Fe were studied by total electron yield mode with using synchrotron radiation Russian-Germany beamline at BESSY-II. The study has shown that top layers of the MWCNTs in composite do not have essential destruction, coating of MWCNT's-surface is Fe 3 O 4 and this coating is continuous. The iron oxide adhesion is provided by chemical binding between the carbon atoms of the MWCNT's top layer and the oxygen atoms of the coating.

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ABSTRACT:A new method for coatings of polymeric phthalocyanines and for comparison also of low molecular weight phthalocyanine metal complexes (W, Cr, Mo, Co) on quartz and titanium dioxide was developed by the reaction of metal carbonyls adsorbed on the carriers with tetracarbonitriles or phthalonitrile. By UV-vis or IR spectra the formation of structural uniform polymeric phthalocyanines on the carriers is established. The compounds are used then to compare their catalytic and photocatalytic activities in the oxidation of sulfide as test reaction.

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