Surface functionalization of porous ZrO2-TiO2 membranes using γ-aminopropyltriethoxysilane in palladium electroless deposition
A pre-treatment technique was developed to facilitate the electroless deposition of Pd layers onto ZrO2-TiO2 ceramic membrane surfaces in the preparation of novel multi-functional porous membranes. Surface functionalization using an aqueous solution of gamma-aminopropyltriethoxysilane (gamma-APTES)...
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Veröffentlicht in: | Applied surface science 2008-03, Vol.254 (10), p.3211-3219 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A pre-treatment technique was developed to facilitate the electroless deposition of Pd layers onto ZrO2-TiO2 ceramic membrane surfaces in the preparation of novel multi-functional porous membranes. Surface functionalization using an aqueous solution of gamma-aminopropyltriethoxysilane (gamma-APTES) aided the surface immobilization of the Pd activation particles and the subsequent electroless deposition of metal layers onto the hydroxyl-rich membrane surface. The attractiveness of gamma-APTES functionalization, in the electroless deposition of metal layers, was thus demonstrated. Characterization techniques employed in the structural study of the surface-modified membranes included SEM, EDS, dynamic analysis in micro-PIXE, and XRD. Special membrane techniques such as electrokinetic analysis and single-gas permeation measurements were also used in the study of surface modification. These membranes were developed for application in tasks associated with the hydrogen economy. |
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ISSN: | 0169-4332 1873-5584 |
DOI: | 10.1016/j.apsusc.2007.10.100 |