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High temperature stability of platinum nanoparticles on few-layer graphene investigated by In Situ high resolution transmission electron microscopy |
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| Authors: | Izabela Janowska Maria-Simona Moldovan Ovidiu Ersen Hervé Bulou Kambiz Chizari Marc J. Ledoux Cuong Pham-Huu |
| Affiliation: | (1) Laboratoire des Mat?riaux, Surfaces et Proc?d?s pour la Catalyse (LMSPC, UMR 7515 CNRS), 25, rue Becquerel, F-67087 Strasbourg Cedex 02, France;(2) Institut de Physique et Chimie des Mat?riaux de Strasbourg (IPCMS, UMR 7504 CNRS), 23, rue du Loess, F-67037 Strasbourg Cedex 08, France |
| Abstract: | eterogeneous catalytic reactions involve the use of highly dispersed active phases such as metal, metal oxide, or metal sulphide nanoparticles on thermally stable supports. Fluctuations of the reaction temperature during the reactions can induce sintering of the particles. The stability of such small particles represents a crucial parameter in the development of new families of catalysts with high activity in many fields. Here we report the stability of platinum nanoparticles (2–3 nm) on a few-layer graphene (FLG) surface as studied by in situ high temperature transmission electron microscopy. |
| Keywords: | Graphene platinium nanoparticles diffusion catalysis TEM annealing |
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