Fourier Transform is extensively used in techniques such as Infrared (IR) Spectroscopy, Nuclear Magnetic Resonance (NMR) Spectroscopy, and X-ray Diffraction (XRD). These techniques provide vital information about the electronic and geometric structure of catalysts. For instance, FT-IR spectroscopy helps identify functional groups and monitor changes during catalytic reactions by converting time-domain data into frequency-domain spectra.