What are the Methods to Characterize Distribution?
Several analytical techniques are used to characterize the distribution of active sites in catalysts:
1. Electron Microscopy: Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) provide visual insights into the distribution of nanoparticles on the catalyst surface. 2. X-ray Diffraction (XRD): XRD helps in identifying the crystalline phases of the active sites and their dispersion within the catalyst. 3. BET Surface Area Analysis: Brunauer-Emmett-Teller (BET) analysis measures the surface area and porosity of the catalyst, indirectly indicating the distribution of active sites. 4. Energy Dispersive X-ray Spectroscopy (EDX): Coupled with electron microscopy, EDX can map the elemental distribution on the catalyst surface.
