What is Temperature-Programmed Desorption (TPD) and its significance?
Temperature-Programmed Desorption (TPD) is a technique used to study the desorption of adsorbed species from the catalyst surface as a function of temperature. It provides information about the strength and distribution of adsorption sites. In TPD, the catalyst is first saturated with a probe molecule, and then the temperature is gradually increased while monitoring the desorption of the probe molecule. The resulting TPD profile helps in understanding the interaction between the catalyst and the adsorbate.
