Diffuse reflectance infrared spectroscopy of adsorbates in liquid phase

Fovanna Thibault; Davide Ferri

doi:10.1016/j.talanta.2023.124734

Diffuse reflectance infrared spectroscopy of adsorbates in liquid phase

Talanta. 2023 Nov 1:264:124734. doi: 10.1016/j.talanta.2023.124734. Epub 2023 May 30.

Authors

Fovanna Thibault¹, Davide Ferri²

Affiliations

¹ Paul Scherrer Institut, CH - 5232 Villigen, Switzerland.
² Paul Scherrer Institut, CH - 5232 Villigen, Switzerland. Electronic address: davide.ferri@psi.ch.

PMID: 37271007
DOI: 10.1016/j.talanta.2023.124734

Abstract

Infrared spectroscopy is widely used to analyse the surface of solid materials central to modern chemical processes. For liquid phase experiments, the attenuated total reflection mode (ATR-IR) requires the use of waveguides that can limit a broader applicability of the technique for catalysis studies. Here, we demonstrate that high quality spectra of the solid-liquid interface can be collected in diffuse reflectance mode (DRIFTS) thus opening future applications of infrared spectroscopy.

Keywords: CO; Catalysts; DRIFTS; Liquid environment; Pyridine.