INVESTIGADORES
MORENO Mario Sergio Jesus
artículos
Título:
Highly anisotropic distribution of iron nanoparticles within MCM-41 Mesoporous Silica
Autor/es:
M. SERGIO MORENO; MATTHEW WEYLAND; PAUL A. MIDGLEY; JOSÉ F. BENGOA; MARTA V. CAGNOLI; NORMA G. GALLEGOS; ANA M. ALVAREZ; SERGIO G. MARCHETTI
Revista:
MICRON
Editorial:
Elsevier
Referencias:
Año: 2006 vol. 37 p. 52 - 56
ISSN:
0968-4328
Resumen:
Electron microscopy techniques are used to visualize the spatial distribution of iron nanoparticles inside a mesoporous MCM-41 molecular sieve. Direct observation of the iron oxide nanoparticles by STEM-HAADF imaging reveals a highly non-uniform spatial distribution inside the mesopores. These particles are retained in the pores after a reduction treatment unlike the behavior found in other similar systems. It is found that thermal treatments induce changes in its morphology, creating nanowires from particle strings.
