TPR of Copper Oxide Nanoparticles on Alumina

Temperature programmed reduction (TPR) is often used to characterize the reducibility of metal oxides. It is a fingerprint of the reduction of the material as a function of temperature. The peak areas and max peak temperatures gives information on the strength, heterogeneity, and quantity of the reducible species. TPR studies are often repeatable, but a change in the experimental conditions or preparation of the material can affect the results. Due to this complexity, experimental conditions are selected based on models such as Monti and Baiker – which considers the selection based on the heating rate, hydrogen concentration, total flow rate, and the amount of reducible material. In this webinar – we will explore this further using copper oxide on alumina support and present the effects of particle size, surface chemistry and how that effects the reduction fingerprint.