| AVS 55th International Symposium & Exhibition | |
| Advanced Surface Engineering | Wednesday Sessions |
| Session SE-WeM |
| Session: | Atmospheric Pressure Treatments and Hard and Nanocomposite Coatings |
| Presenter: | F. Reniers, Universite Libre de Bruxelles, Belgium |
| Authors: | F. Demoisson, Universite Libre de Bruxelles, Belgium J.J. Pireaux, Facultés Universitaires Notre Dame de la Paix, Belgium H. Terryn, Vrije Universiteit Brussel, Belgium F. Reniers, Universite Libre de Bruxelles, Belgium |
| Correspondent: | Click to Email |
The deposition of metal nanoparticles on various substrates is of high interest in surface science, as they can induce new chemical properties on surfaces. Applications can be found in catalysis, for gas sensor applications, in environmental science,.... however, the deposition of metal nanoparticles is facing many challenges such as : difficulty to have a strong binding on various surfaces (polymer, carbon, glass,...), technological difficulty of the deposition process, bad dispersion of the particles on the surface, bad particle size distribution,.... Usual processes require today high vacuum evaporation of the metal onto preactivated surfaces, or the use of hazardous organometallic compounds as precursors. In this work we present a new process1 to deposit, in one step, easily, metal nanoparticles (Au, Rh, Pt) onto various surfaces (HOPG, glass, polymer, metal), using an atmospheric plasma torch (AtomFlo, SurX Technologies). The resulting surfaces are characterized by FEG-SEM and XPS. The results show an excellent particle size distribution, and a very good homogeneity of the particle distribution on the surfaces. Surface coverages in the range of 10-15% were obtained. The adhesion of the particles on the surface was tested using ultrasonication and proved to be very good.
1F. Demoisson, JJ Pireaux, F. Reniers, "process to deposit nanoparticles on a substrate" patent pending 08151463.0-1215.