2D correlation SERS of organic ions using AuNP films at electrified soft interfaces
Abstract
). The interfacial potential governs their adsorption and distribution between the phases. To discriminate spectral responses and identify the sequence of interfacial processes as a function of applied potential, two-dimensional correlation spectroscopy using the applied potential as the external perturbation of the system was employed. The synchronous and asynchronous maps highlight potential-induced changes in adsorption states as well as competitive interactions between the probe molecules, the supporting electrolyte and the AuNPs film at the interface. Overall, these results demonstrate that electrochemically assembled AuNP films act as dynamic plasmonic substrates whose SERS performance can be modulated by potential (EC-SERS), while 2D-Correlation Spectroscopy provides a complementary approach to unravel multi-species mechanisms at liquid-liquid interfaces.
Fields of Study & Subjects
Gold and Silver Nanoparticles Synthesis and Applications
Electrocatalysts for Energy Conversion
Electrochemical Analysis and Applications
Publication details
- Journal / source
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 28
- Issue
- 5
- Pages
- 3236–3244
- Publication date
- 1 January 2026
- Language
- EN