مشخصات پژوهش

عنوان	CO2 reforming of methane over Ni/ZnAl2O4 catalysts: Influence of Ce addition on activity and stability
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Methane dry reforming,Syngas, Nano Ni/ZnAl2O4 catalyst,Ce addition, Coke deposition
چکیده	The catalytic performance of Ni supported on Ce-promoted ZnAl2O4 was evaluated in methane dry reforming. The effect of different nominal loadings of cerium (3, 5 and 7 wt%) in the activity, product yield and stability was studied. Ce presented a promote effect in catalytic activity, product yield and especially in stability. However the catalytic performance was considerably influenced by the amount of cerium. SEM images presented smaller particles and TPR profiles revealed stronger active phase/support interaction by Ce addition which led to increasing methane conversion and decreasing coke deposition. Although high amount of Ce was not in favor of its promoting effect due to aggregation of CeO2 on the catalyst surface. Among the catalysts investigated, the optimal catalytic activity and stability was achieved over the sample with 5 wt% of cerium.
پژوهشگران	سید مهدی علوی (نفر دوم)، گلشن مظلوم گرمجانی (نفر سوم)، اعظم مواساتی (نفر اول)