What is High Energy Resolution Fluorescence Detection (HERFD)?
High Energy Resolution Fluorescence Detection (HERFD) is an advanced spectroscopic technique that enhances the resolution of X-ray absorption spectroscopy (XAS). By using a crystal analyzer to select specific X-ray fluorescence lines, HERFD significantly improves the energy resolution, providing more detailed insights into the electronic and structural environment of elements within a sample. This technique is especially valuable in catalysis research, where understanding the active sites and their transformations is crucial.