Gregor Koch
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View article: The Haber Bosch Catalyst from Solid state Chemistry to Mesotechnology
The Haber Bosch Catalyst from Solid state Chemistry to Mesotechnology Open
Ammonia is industrially synthesized over multi‐promoted Fe‐based catalysts for more than a century. Although ammonia synthesis reflects a prototypical catalytic reaction, rational catalyst design is still impossible as the full structural …
View article: Low-Temperature Exsolution of Rh from Mixed ZnFeRh Oxides toward Stable and Selective Catalysts in Liquid-Phase Hydroformylation
Low-Temperature Exsolution of Rh from Mixed ZnFeRh Oxides toward Stable and Selective Catalysts in Liquid-Phase Hydroformylation Open
The exsolution of metal nanoparticles offers a promising strategy to enhance catalyst stability and fine-tune metal-support interactions. Expanding the use of exsolved nanoparticles in heterogeneous catalysis requires the development of lo…
View article: CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and Artificial Intelligence
CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and Artificial Intelligence Open
The identification of key materials’ parameters correlated with the performance can accelerate the development of heterogeneous catalysts and unveil the relevant underlying physical processes. However, the analysis of correlations is often…
View article: CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and Artificial Intelligence
CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and Artificial Intelligence Open
The identification of key materials’ parameters correlated with the performance can accelerate the development of heterogeneous catalysts and unveil the relevant underlying physical processes. However, the analysis of correlations is often…
View article: CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and AI
CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and AI Open
The identification of key materials’ parameters that correlate with the catalytic performance can accelerate the development of improved heterogeneous catalysts and unveil the relevant underlying physical processes. However, the analysis o…
View article: Structural Analysis and Redox Properties of Oxygen-“Breathing” A(Mn<sub>1–<i>x</i></sub>Cu<sub><i>x</i></sub>)O<sub>3</sub> (A = La, Pr) Perovskites
Structural Analysis and Redox Properties of Oxygen-“Breathing” A(Mn<sub>1–<i>x</i></sub>Cu<sub><i>x</i></sub>)O<sub>3</sub> (A = La, Pr) Perovskites Open
The redox properties of perovskites play an important role in their use in thermo- and electrocatalytic applications. Here, we report the effects of substituting copper for manganese in A(Mn1–xCux)O3 (A = La, Pr; 0 ≤ x ≤ 0.4) perovskites o…
View article: CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and AI
CO Oxidation Catalyzed by Perovskites: The Role of Crystallographic Distortions Highlighted by Systematic Experiments and AI Open
The identification of key parameters that correlate with catalytic performance through a combination of experiments and model calculations can accelerate the development of improved catalysts and reveal the relevant underlying processes. H…
View article: The Influence of Melting on Catalysis in Propane Oxidation
The Influence of Melting on Catalysis in Propane Oxidation Open
A model catalyst composed of crystalline potassium pentavanadate (K 3 V 5 O 14 ) supported on silica was studied to elucidate the effect of phase transitions on the performance of potassium‐promoted vanadia catalysts in propane oxidation. …
View article: Data-Centric Heterogeneous Catalysis: Identifying Rules and Materials Genes of Alkane Selective Oxidation
Data-Centric Heterogeneous Catalysis: Identifying Rules and Materials Genes of Alkane Selective Oxidation Open
Artificial intelligence (AI) can accelerate catalyst design by identifying key physicochemical descriptive parameters correlated with the underlying processes triggering, favoring, or hindering the performance. In analogy to genes in biolo…
View article: Data-centric heterogeneous catalysis: identifying rules and materials genes of alkane selective oxidation
Data-centric heterogeneous catalysis: identifying rules and materials genes of alkane selective oxidation Open
Artificial intelligence (AI) can accelerate materials design by identifying the key parameters correlated with the performance. However, widely used AI methods require big data, and only the smallest part of the available data in heterogen…
View article: The Influence of the Chemical Potential on Defects and Function of Perovskites in Catalysis
The Influence of the Chemical Potential on Defects and Function of Perovskites in Catalysis Open
A Sm-deficient Sm 0.96 MnO 3 perovskite was prepared on a gram scale to investigate the influence of the chemical potential of the gas phase on the defect concentration, the oxidation states of the metals and the nature of the oxygen speci…
View article: Towards Experimental Handbooks in Catalysis
Towards Experimental Handbooks in Catalysis Open
The “Seven Pillars” of oxidation catalysis proposed by Robert K. Grasselli represent an early example of phenomenological descriptors in the field of heterogeneous catalysis. Major advances in the theoretical description of catalytic react…
View article: Surface Conditions That Constrain Alkane Oxidation on Perovskites
Surface Conditions That Constrain Alkane Oxidation on Perovskites Open
The crystal structure of perovskites can incorporate a wide variety of cations, which makes this class of materials so interesting for studies of links between solid-state chemistry and catalysis. Perovskites are known as typical total com…
View article: ZnO Coatings with Controlled Pore Size, Crystallinity and Electrical Conductivity
ZnO Coatings with Controlled Pore Size, Crystallinity and Electrical Conductivity Open
Zinc oxide is a wide bandgap semiconductor with unique optical, electrical and catalytic properties. Many of its practical applications rely on the materials pore structure, crystallinity and electrical conductivity. We report a synthesis …