Stabilized Nanoporous Metals by Dealloying Ternary Alloy Precursors

Stabilized Nanoporous Metals by Dealloying Ternary Alloy Precursors

A small percentage of platinum added to silver/gold alloys that are then electrochemically dealloyed yields an extremely high surface area nanoporous metal, with pore size less than 4 nm, as shown in the figure (scale bar = 5 nm). The presence of surface platinum stabilizes the nanostructure to coar...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Weinheim) 2008-12, Vol.20 (24), p.4883-4886
Hauptverfasser: Snyder, Josh, Asanithi, Piyapong, Dalton, Alan B., Erlebacher, Jonah
Format: Artikel
Sprache:eng
Schlagworte:
alloys
gold
metals
nanoporous materials
platinum
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A small percentage of platinum added to silver/gold alloys that are then electrochemically dealloyed yields an extremely high surface area nanoporous metal, with pore size less than 4 nm, as shown in the figure (scale bar = 5 nm). The presence of surface platinum stabilizes the nanostructure to coarsening in air and electrolyte.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200702760