Active Sites on Oxide Surfaces:ZnO-Catalyzed Synthesis of Methanol from CO and H_2

摘要

Chemical processes on metal oxide surfaces have been of great interest for a long time,mostly due to their relevance in the field of heterogeneous catalysis.Since"perfect"oxide surfaces usually show only little or no activity,it is widely believed that the high reactivity of oxide powders results from the presence of a small number of active sites.Most of the models proposed for these active sites are based on oxygen vacancies or defects.