Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, Recommanded Product: 1317-39-1, Name is Copper(I) oxide, belongs to copper-catalyst compound, is a common compound. Recommanded Product: 1317-39-1In an article, authors is Zabilskiy, Maxim, once mentioned the new application about Recommanded Product: 1317-39-1.
N2O decomposition over CuO/CeO2catalyst: New insights into reaction mechanism and inhibiting action of H2O and NO by operando techniques
In this work, a combination of ex situ (STEM-EELS, STEM-EDX, H2-TPR and XPS), in situ (CO-DRIFTS) and operando (DR UV-vis and DRIFTS) approaches was used to probe the active sites and determine the mechanism of N2O decomposition over highly active 4 wt.% Cu/CeO2catalyst. In addition, reaction pathways of catalyst deactivation in the presence of NO and H2O were identified. The results of operando DR UV-vis spectroscopic tests suggest that [Cu-O-Cu]2+sites play a crucial role in catalytic N2O decomposition pathway. Due to exposure of {1 0 0} and {1 1 0} high-energy surface planes, nanorod-shaped CeO2support simultaneously exhibits enhancement of CuO/CeO2redox properties through the presence of Ce3+/Ce4+redox pair. Its dominant role of binuclear Cu+site regeneration through the recombination and desorption of molecular oxygen is accompanied by its minor active participation in direct N2O decomposition. NO and H2O have completely different inhibiting action on the N2O decomposition reaction. Water molecules strongly and dissociatively bind to oxygen vacancy sites of CeO2and block further oxygen transfer as well as regeneration of catalyst active sites. On the other hand, the effect of NO is expressed through competitive oxidation to NO2, which consumes labile oxygen from CeO2and decelerates [Cu+Cu+] active site regeneration.
Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. A catalyst, does not appear in the overall stoichiometry of the reaction it catalyzes. you can also check out more blogs about SDS of cas: 1532-72-5!, Recommanded Product: 1317-39-1
Reference：
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”