Abstract by justin park
Chemistry and Biochemistry
Low temperature oxidative dehydrogenation of ethane by Ce modified NiNb catalysts
Low temperature oxidative dehydrogenation catalysts are becoming a viable material for drastically altering the production of small chain alkenes. Among materials used, bi- and tri-metallic nickel catalysts have shown great promise. In this study, we report a 38% increase in the rate of ethylene production with the addition of Ce to NiNb catalysts. Oxidative dehydrogenation of ethane was performed in the temperature range of 250-350°C. At 300°C, the rate of ethylene production is maximized with a rate of 6.91x10-4 mmol. gcat-1s-1. At higher temperatures, the rate of deep oxidation to CO2 outcompetes the rate of ethylene formation. The improved rate due to the addition of Ce is attributed to ceria’s ability to rapidly transport oxygen to the NiO active sites.