A Templateless, Surfactantless, Simple Electrochemical Route to a Dendritic Gold Nanostructure and Its Application to Oxygen Reduction

A templateless, surfactantless, simple electrochemical route to prepare dendritic gold nanostructure is reported. The morphology, composition, and structure of as-prepared dendritic gold nanostructure were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), e...

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Bibliographic Details
Published in:Langmuir 2010-05, Vol.26 (10), p.7627-7631
Main Authors: Xu, Xiaolong, Jia, Jianbo, Yang, Xiurong, Dong, Shaojun
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Colloidal state and disperse state
Dendrimers - chemical synthesis
Dendrimers - chemistry
Electrochemistry
Electrochemistry: Charge Transfer, Electrocatalysis, Kinetics, Bioelectrochemistry
Exact sciences and technology
General and physical chemistry
Gold - chemistry
Metal Nanoparticles - chemistry
Oxidation-Reduction
Oxygen - chemistry
Particle Size
Surface physical chemistry
Surface Properties
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:A templateless, surfactantless, simple electrochemical route to prepare dendritic gold nanostructure is reported. The morphology, composition, and structure of as-prepared dendritic gold nanostructure were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. The whole nanostructure was constructed by pristine metallic gold. The formation mechanism related to experimental conditions was discussed. The synthesis promises indium tin oxide (ITO) electrode can be easily modified with the dendritic pristine gold nanostructure. The as-prepared modified ITO electrode has excellent catalytic activity to oxygen reduction in neutral KCl solution.
ISSN:0743-7463
1520-5827
DOI:10.1021/la904245q