What is Temperature Programmed Ammonia Desorption (TPAD)?
Temperature Programmed Ammonia Desorption (TPAD) is an analytical technique used to characterize the acidic properties of catalysts. It involves adsorbing ammonia (NH3) onto the catalyst surface at a low temperature, followed by a controlled increase in temperature to desorb the ammonia. The amount and rate of ammonia desorption provide valuable information about the acid site density and strength of the catalyst.
