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)...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied surface science 2008-03, Vol.254 (10), p.3211-3219
Hauptverfasser: WILLIAMS, M, PINEDA-VARGAS, C. A, KHATAIBE, E. V, BLADERGROEN, B. J, NECHAEV, A. N, LINKOV, V. M
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
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.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2007.10.100