Infrared spectroscopy at the surface of carbonates
Taha Elgayyar1, Federico Azzolina-Jury1, Frédéric Thibault-Starzyk1
1Université de Caen Normandie, ENSICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000 Caen, France. tahaelgayyar1@gmail.com.
Physical Chemistry Chemical Physics : PCCP
|October 20, 2025
Summary
Fourier-transform infrared (FTIR) spectroscopy is a powerful tool for analyzing carbonate structure and surface chemistry. This review highlights its use in understanding adsorption, crucial for CO2 capture and storage applications.
Area of Science:
- Geochemistry
- Materials Science
- Spectroscopy
Background:
- Infrared (IR) spectroscopy is widely used for carbonate characterization.
- Its application in studying carbonate surface adsorption capacity is less explored.
- Carbonates are vital in environmental and industrial processes like CO2 capture.
Purpose of the Study:
- To review the application of Fourier-transform infrared (FTIR) spectroscopy for studying carbonate structure and surface chemistry.
- To highlight FTIR's potential in understanding adsorption phenomena on carbonate surfaces.
- To guide future research in environmental and industrial applications involving carbonates.
Main Methods:
- Detailed analysis of carbonate polymorphs (calcite, aragonite, vaterite, amorphous phases) using various FTIR techniques.
- Investigation of phase transformation kinetics via FTIR.
- Adsorption studies of molecules (CO, CO2, H2O, acids, HCs) to identify adsorption sites, mechanisms, and intermediates.
Main Results:
- FTIR provides detailed structural and vibrational information on carbonate polymorphs.
- FTIR techniques enable the study of phase transformation kinetics.
- Adsorption studies reveal insights into adsorption sites, mechanisms, and intermediates on carbonate surfaces.
Conclusions:
- FTIR spectroscopy is a significant tool for understanding carbonate structure and surface properties.
- Insights from FTIR are crucial for optimizing environmental and industrial processes involving carbonates.
- This review emphasizes the potential of FTIR for advancing research in CO2 capture and storage.
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