Complex spectra in the field of catalysis refer to the intricate patterns observed in spectroscopic studies of catalytic systems. These patterns arise due to the interactions between various chemical species and the catalyst's surface. Spectroscopic techniques such as Infrared Spectroscopy (IR), Nuclear Magnetic Resonance (NMR), Ultraviolet-Visible Spectroscopy (UV-Vis), and X-ray Photoelectron Spectroscopy (XPS) are used to analyze these interactions, providing insights into the mechanisms and efficiencies of catalytic processes.
