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Cluster organization in co-sputtered carbon-platinum films as revealed by grazing incidence X-ray scattering
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mougenot, M. Andreazza, P. Andreazza-Vignolle, Caroline Escalier, Raphaël Sauvage, Th. Lyon Brault, Pascal |
| Copyright Year | 2011 |
| Abstract | Nanostructured Platinum-Carbon thin films were prepared by magnetron cosputtering method for designing efficient catalytic thin films, like fuel cells electrodes. The indepth morphology of composite films was studied using surface sensitive x-ray techniques (grazing incidence small angle scattering and reflectivity), consolidated by electron microscopy investigations. This study elucidates the growth mode of co-sputtered carbonplatinum thin film: 2nm-sized platinum clusters are growing in surrounding simultaneously growing carbon columns (20nm-diameter range). In particular, the platinum cluster growth and distribution in the plane of the substrate surface are driven by surface diffusion and coalescence phenomena. Finally, this anisotropic distribution of platinum clusters correlated to the textured morphology of carbon matrix leads to a catalytic thin film morphology very suitable for electrochemical processes in fuel cell electrodes. 1 Present address : Agence Innovation MID, 4 rue A. Caquot, 28500 Vernouillet, France |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://pascal.brault.pagesperso-orange.fr/NANO4424_Rev1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
