INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
The effect of electroless plating time on the morphology, alloy
Autor/es:
M.L. BOSKO, E.A. LOMBARDO, L.M. CORNAGLIA
Revista:
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2010
ISSN:
0360-3199
Resumen:
The effect of plating times and metal deposition sequence on the morphology of PdAg
films on porous supports and also on alloy formation has been investigated. PdeAg
composite membranes were prepared by electroless plating; the substrates were modified
using dip coated alumina and in situ hydrothermal synthesis of NaA zeolite with
secondary growth. The chemical and physical phenomena involved in the atomic diffusion
during the thermal treatment as well as the crystalline structure were tracked by scanning
electron microscopy, energy-dispersive X-ray analysis, X-ray photoelectron spectroscopy,
and X-ray diffraction. In order to isolate the main component of the hydrogen transport
(solution-diffusion mechanism), the composite membranes were considered as layers in
series, with porous and dense parts; the porous areas were modeled by the dusty gas
model. This allowed a more accurate estimation of Sieverts transport parameters and
a critical comparison with data reported in the literature.