Importance of Dynamics in real catalyst systems
作者： H. Topsøe , C.V. Ovesen , B.S. Clausen , N.-Y. Topsøe , P.E. Højlund Nielsen
DOI: 10.1016/S0167-2991(97)80402-8
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摘要: Publisher Summary The EXAFS and FTIR investigations of Cu/ZnO methanol synthesis catalyst show that depending on the reduction potential reaction gas surface bulk morphology Cu particle change. Micro kinetic analysis steady state transient experiments morphological changes have a strong impact activity behavior catalysts. As result such changes, one cannot assume in modelling structure total number sites remain constant. It was seen it is possible to modify static micro model based science results measured sensitivity adjust this take into account structural changes. Such has been termed dynamic model. also explains nicely trends observed experiments. ZnO support play an essential role Cu-ZnO interphase energy determines what extent spreading occur. effects for containing catalysts are very different from those other supported
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