Mixed monolayer protected gold atom-oxide cluster synthesis and characterization.
Nanoscale
; 4(14): 4130-7, 2012 Jul 21.
Article
en En
| MEDLINE
| ID: mdl-22652691
ABSTRACT
Small atomic gold clusters in solution, Au(n), stabilized by cetyl trimethylammonium bromide (CTAB) and cysteine, have been synthesized potentiodynamically in quiescent aqueous solutions. The electrodissolution of gold to gold ions during an anodic scan and subsequent cluster formation during a cathodic scan in underpotential (UPDD) and overpotential dissolution-deposition (OPDD) regions were studied. The experimental potentiodynamic I-E profiles and chronoamperometric i-t transients are fit into reported theoretical models of adsorption and electrocrystallization. The plausible application of clusters/cluster film to cysteine sensing based on fluorescence quenching and square wave stripping voltammetry is demonstrated.
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Colección:
01-internacional
Base de datos:
MEDLINE
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Idioma:
En
Revista:
Nanoscale
Año:
2012
Tipo del documento:
Article
País de afiliación:
India