Future Challenges in Heterogeneous Catalysis: Understanding Catalysts under Dynamic Reaction Conditions

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• 作者：Dr. Kai F. Kalz ; Dr.-Ing. Ralph Kraehnert ; Dr. Muslim Dvoyashkin ; Prof. Dr.-Ing. Roland Dittmeyer ; Prof. Dr. Roger Glä ; ser ; Prof. Dr.-Ing. Ulrike Krewer ; Prof. Dr. Karsten Reuter and Prof. Dr. Jan-Dierk Grunwaldt
• 刊名：ChemCatChem
• 出版年：2017
• 出版时间：January 9, 2017
• 年：2017
• 卷：9
• 期：1
• 页码：17-29
• 全文大小：2284K
• ISSN：1867-3899

文摘

In the future, (electro-)chemical catalysts will have to be more tolerant towards a varying supply of energy and raw materials. This is mainly due to the fluctuating nature of renewable energies. For example, power-to-chemical processes require a shift from steady-state operation towards operation under dynamic reaction conditions. This brings along a number of demands for the design of both catalysts and reactors, because it is well-known that the structure of catalysts is very dynamic. However, in-depth studies of catalysts and catalytic reactors under such transient conditions have only started recently. This requires studies and advances in the fields of 1) operando spectroscopy including time-resolved methods, 2) theory with predictive quality, 3) kinetic modelling, 4) design of catalysts by appropriate preparation concepts, and 5) novel/modular reactor designs. An intensive exchange between these scientific disciplines will enable a substantial gain of fundamental knowledge which is urgently required. This concept article highlights recent developments, challenges, and future directions for understanding catalysts under dynamic reaction conditions.