Structured Catalysts and Catalytic Processes: Transport and Reaction Perspectives

Area of Science:

• Heterogeneous Catalysis
• Materials Science
• Chemical Engineering

Background:

• Catalyst structure dictates catalytic process performance by modulating electronic and geometric properties.
• Interactions between active species and catalyst surfaces govern adsorption, reaction, and desorption dynamics.
• Complex catalyst architectures (bulk, interfacial, encapsulated, atomically dispersed) offer avenues for enhanced molecular control.

Purpose of the Study:

• To provide a comprehensive understanding of how electronic and geometric properties, along with complex catalyst structures, influence heterogeneous catalytic processes.
• To analyze the transport phenomena and reactions over structured catalysts for converting light alkanes and small molecules.
• To discuss recent advancements in theoretical descriptors for active sites and summarize catalyst designs.

Main Methods:

• Literature review focusing on structured catalysts and their performance in molecular conversions.
• Analysis of electronic and geometric properties at the atomic level using theoretical descriptors.
• Examination of transport phenomena and reaction mechanisms over various catalyst structures.

Main Results:

• Complex catalyst structures significantly influence electronic/geometric properties, enabling fine-tuning of catalytic activity.
• Structured catalysts demonstrate enhanced performance in the conversion of light alkanes and small molecules.
• Theoretical descriptors provide atomic-level insights into structure-activity relationships.

Conclusions:

• Understanding the interplay between catalyst structure, electronic/geometric properties, and reaction mechanisms is crucial for designing efficient catalysts.
• Structured catalysts offer promising pathways for optimizing heterogeneous catalytic processes.
• Further research is needed to address challenges in the development of advanced structured catalysts and catalytic processes.