Carbon nanotubes decorated with platinum

3 NEW MATERIAL SUPPORT AND NEW CATALYST APPROACHES 2.3.1 Carbon nanotubes decorated with platinum 

There have been also reports where catalyzers are said to be more stable if supported by CNTs. For example, it has been reported (Lee et al, 2012) the loss of oxygen-related functional groups which are known to accelerate carbon corrosion and Pt agglomeration. In that study, authors observed an effect of catalytic cleavage of hydrogen molecules followed by spillover and a dehydration reaction. 

on the other hand, come in various formats, including bundles, straight nanotubes, open nanotubes, or the so-called unzipped nanotubes, where the inner areas are more easily available than closed structures. As mentioned earlier, nanotubes are single sheets of graphite rolled up into cylinders, which can be opened along their axis and even flattened in flake forms. Handling tubes or such sheets will definitely have different structural effects with operational consequences (namely effective transport properties) and therefore, they need to be studied using computational reconstruction tools just as we did in the past sections. 

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Another idea is to deposit on the electrode surface carbon nanofibers (nanotubes) by PECVD and then decorating them by sputtered platinum nanoclusters. Generally, three consecutive plasma deposition steps are carried out to this end the sputtering of a catalyst used to initiate the growth of the carbon nanofibers (e.g. Fe, Ni, Co), the creation of the nanofibers by PECVD from a mixture of precursors (e.g. CH4/H2, CH4/N2) and the sputtering of platinum. The plasma produced systems consisting of carbon nanofibers with a diameter of... 

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