Potentiometric Study of the Growth of a Single Au Nanoparticle

被引：2
|
作者：
Yao, Zhiqi [1 ]
Wu, Shu [1 ]
Silvas, Raul Padilla [1 ]
Khichoomian, Nareh [1 ]
Carrillo, Zachary A. [1 ]
Anz, Samir [1 ]
Sun, Peng [1 ]
机构：
[1] Calif State Polytech Univ Pomona, Dept Chem & Biochem, Pomona, CA 91768 USA
来源：
ELECTROANALYSIS | 2023年 / 35卷 / 02期
关键词：
Nanoelectrode; Single Nanoparticle; Potentiometry; GOLD NANOPARTICLES; PLATINUM; SIZE; ELECTRODES; COLLISIONS; OXIDATION; CATALYSTS; METAL; ULTRAMICROELECTRODE; ADSORPTION;
D O I：
10.1002/elan.202200166
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A single nanoparticle (NP) attached to a nanoelectrode is a very useful system in understanding the relationship between the size of nanoparticles and their electrochemical properties. In this study, a single Au NP was spontaneously formed on a Pt nanoelectrode. The potential measured on such a system can be employed to study the effect of size of an Au nanoparticle on the Nernst potential of the reaction, AuCl4- +3e -> Au(s) +4Cl(-). Moreover, the nucleation period and the growth period can be distinguished from the potential graph, and the nucleation rate of the spontaneously formed Au NP can be evaluated.
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页数：7
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