| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5422649 | Surface Science | 2013 | 8 Pages |
Abstract
⺠The coarsening of Pt nanoparticles on amorphous carbon film was studied after annealing between 200 °C and 300 °C. ⺠An in-situ annealing experiment in a transmission electron microscope reveals two coarsening stages. ⺠During the first two hours of annealing, nanoparticles ripening is dominated by Smoluchowski ripening. ⺠During the second coarsening stage Pt nanopaticles coarsening proceeds via surface Ostwald ripening. ⺠The surface diffusion of Pt atoms on an amorphous carbon was deduced.
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Authors
E. Prestat, R. Popescu, H. Blank, R. Schneider, D. Gerthsen,