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Título del libro: Nanotechnology 2010: Advanced Materials, Cnts, Particles, Films And Composites - Technical Proceedings Of The 2010 Nsti Nanotechnology Conference And Expo, Nsti-Nanotech 2010
Título del capítulo: Fuel cell catalysts based on core-shell nano-particles

Autores UNAM:
MARGARITA RIVERA HERNANDEZ;
Autores externos:

Idioma:

Año de publicación:
2010
Palabras clave:

Core-shell; Different solvents; Dispersion mechanisms; Fuel cell catalysts; Graphite surfaces; Highly oriented pyrolytic graphite; Individual particles; Isopropyl alcohols; Mixed solution; Platinum black; Pt; Pt nanoparticles; SEM; STM images; Catalysts; Dispersions; Films; Fuel cells; Graphite; Nanoparticles; Nanotechnology; Platinum; Agglomeration


Resumen:

In this work, we used platinum black to improve the dispersion mechanisms onto highly oriented pyrolytic graphite substrates by using different solvents in order to develop a methodology to disperse core-shell Pt nanoparticles. With this technique, we found that pure isopropyl alcohol exhibited better dispersion onto graphite in comparison with a mixed solution. Although SEM and STM images revealed in general a poor dispersion, some aggregates and few individual particles scattered onto the graphite surface were observed.


Entidades citadas de la UNAM: