The complexity of catalytic systems often requires more than one analytical method to unravel the intricacies involved. For example, understanding the active sites of a catalyst and their interaction with reactants can be challenging. By employing a combination of techniques such as spectroscopy, microscopy, and computational modeling, researchers can gain a holistic view of the catalytic process. This integrated approach helps in identifying the key parameters that govern catalytic activity and selectivity, leading to the design of better catalysts.