Issue 35, 2021

Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance

Abstract

This review describes recent progress of spectroelectrochemistry (SEC) analysis of single metallic nanoparticles (NPs) which have strong surface plasmon resonance properties. Dark-field scattering (DFS), photoluminescence (PL), and electrogenerated chemiluminescence (ECL) are three commonly used optical methods to detect individual NPs and investigate their local redox activities in an electrochemical cell. These SEC methods are highly dependent on a strong light-scattering cross-section of plasmonic metals and their electrocatalytic characteristics. The surface chemistry and the catalyzed reaction mechanism of single NPs and their chemical transformations can be studied using these SEC methods. Recent progress in the experimental design and fundamental understanding of single-NP electrochemistry and catalyzed reactions using DFS, PL, and ECL is described along with selected examples from recent publications in this field. Perspectives on the challenges and possible solutions for these SEC methods and potential new directions are discussed.

Graphical abstract: Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance

Article information

Article type
Perspective
Submitted
21 6 2021
Accepted
11 8 2021
First published
11 8 2021

Phys. Chem. Chem. Phys., 2021,23, 19120-19129

Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance

S. Pan, X. Li and J. Yadav, Phys. Chem. Chem. Phys., 2021, 23, 19120 DOI: 10.1039/D1CP02801D

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