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Issue 12, 2019
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Real-time monitoring of electrochemical reactions on single nanoparticles by dark-field and Raman microscopy

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Abstract

Nanoparticles (NPs) play a central role in a wide range of electrochemical applications. One of the ultimate goals for nano-electrochemistry is to establish the structure–activity relationship (SAR) of NPs, so that they can be rationally designed and synthesized. However, it has remained a critical challenge until now, despite the tremendous efforts that have been made. This is largely because most ensemble characterization methods cannot resolve the significant static and dynamic disorder among the individual NPs and their respective active sites. The recently developed single NP electrochemical methods, including both collision and immobilization, opened up a radically new and effective way to uncover such heterogeneity. More importantly, it has also been increasingly recognized that coupling electrochemistry with operando optical microscopy is of great benefit to elucidate the dynamic SAR as well as the underlying reaction mechanisms. Herein, this frontier article aims to provide a timely update on the recent progress of using dark-field and Raman microscopy to probe the single NP electrochemistry in real time.

Graphical abstract: Real-time monitoring of electrochemical reactions on single nanoparticles by dark-field and Raman microscopy

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Article information


Submitted
28 Dec 2018
Accepted
28 Jan 2019
First published
29 Jan 2019

Dalton Trans., 2019,48, 3809-3814
Article type
Frontier

Real-time monitoring of electrochemical reactions on single nanoparticles by dark-field and Raman microscopy

K. Qiu, T. P. Fato, P. Wang and Y. Long, Dalton Trans., 2019, 48, 3809
DOI: 10.1039/C8DT05141K

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