PtSn Intermetallic, Core-Shell, and Alloy Nanoparticles as CO-Tolerant Electrocatalysts for H₂ Oxidation

PtSn Intermetallic, Core-Shell, and Alloy Nanoparticles as CO-Tolerant Electrocatalysts for H₂ Oxidation

More order, more tolerance: PtSn intermetallic and alloy nanoparticles (NPs) were prepared by the co‐reduction of [Pt(acac)2] (acac=acetylacetonate) and SnCl4. The intermetallic NPs can convert to PtSn@Pt core–shell NPs after potential cycling in CO‐saturated H2SO4 solution. Electrochemical studies...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Angewandte Chemie (International ed.) 2010-04, Vol.49 (18), p.3173-3176
Hauptverfasser: Liu, Zhufang, Jackson, Greg S, Eichhorn, Bryan W
Format: Artikel
Sprache:eng
Schlagworte:
alloys
Alloys - chemistry
Carbon Monoxide - chemistry
Catalysis
CO tolerance
core-shell structures
Electrochemistry
Hydrogen - chemistry
intermetallic phases
Nanoparticles - chemistry
Oxidation-Reduction
Particle Size
Platinum - chemistry
PtSn nanoparticles
Solutions
Sulfuric Acids - chemistry
Surface Properties
Tin - chemistry
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:More order, more tolerance: PtSn intermetallic and alloy nanoparticles (NPs) were prepared by the co‐reduction of [Pt(acac)2] (acac=acetylacetonate) and SnCl4. The intermetallic NPs can convert to PtSn@Pt core–shell NPs after potential cycling in CO‐saturated H2SO4 solution. Electrochemical studies demonstrated the core–shell and intermetallic electrocatalysts had substantially higher CO tolerance than PtSn alloy, PtRu alloy, and monometallic Pt.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200907019