Graphite-supported platinum catalysts preparation

In the present article, the size and the loading efficiency of metal particles were investigated by changing the preparation method of carbon-supported platinum catalysts. First, the effect of acid/base treatment on carbon blacks supports on the preparation and electroactivity of platinum catalysts. Secondly, binary carbon-supported platinum (Pt) nanoparticles were prepared using two types of carbon materials such as carbon blacks (CBs) and graphite nanofibers (GNFs) to check the influence of carbon supports on the electroactivity of catalyst electrodes. Lastly, plasma treatment or oxyfluorination treatment effects of carbon supports on the nano structure as well as the electroactivity of the carbon supported platinum catalysts for DMFCs were studied. 

Many studies report the effect of porosity and surface area on metal dispersion and catalytic activity. Linares-Solano et al. [10] prepared platinum catalysts supported on a graphitized carbon black (V3G), which was subjected to various degrees of activation in air to increase the surface area. They observed that as the surface area of the parent sample increased from 62 m /g to 136 m /g,... 

Apart from the massive form, the element is most often encountered as platinum black , a finely divided and highly reactive material that has some catalytic activity. It can be prepared by reducing chloroplatinic acid with any of a variety of reductants, such as alkaline formaldehyde. For practical applications, the metal is often deposited in colloidal form on an oxide, graphite, or other support, so that it better retains its high surface area and therefore its catalytic activity. Supported colloidal Pt has some advantages as a catalyst in organic synthesis. ... 

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