FORTRESS
Fast Operando Raman Spectroscopy for Resolving Processes in Solid/Liquid and Solid/Gas Conditions
Modern surface science increasingly relies on operando techniques to study materials at solid/liquid and solid/gas interfaces during chemical reactions. Ex situ analysis remains informative but cannot capture real-time dynamic surface processes. Raman spectroscopy is a powerful tool for operando characterization thanks to its non-destructive nature, sub-micrometer spatial resolution, and applicability at high temperatures and pressures. However, its weak intrinsic signal and the strong interference caused by fluorescence significantly limit its effectiveness.
To overcome these limitations, this project proposes the development of a fluorescence-insensitive operando Raman spectroscopy for studying processes at solid/liquid and solid/gas interfaces (FORTRESS). The system will integrate a modular spectrometer equipped with picosecond pulsed lasers, continuous-wave operation, nanosecond-response detectors, and fiber-optic coupling for analysis under real operating conditions. This innovative configuration will enhance signal intensity, suppress fluorescence, and enable time-resolved Raman spectroscopy compatible with demanding operando environments. The proposed advances will transform operando materials characterization, with applications in catalysis, corrosion, energy storage, and environmentally driven material transformations.
