Leveraging Expertise in Thermal Catalysis to Understand Plasma Catalysis

Leveraging Expertise in Thermal Catalysis to Understand Plasma Catalysis

2024 | Leon Lefferts*
The article discusses the application of expertise in testing heterogeneous catalysts to plasma catalysis, emphasizing the importance of independent determination of plasma-catalytic and plasma-chemical contributions. It highlights the need for non-porous catalyst particles to avoid sub-micron pores from contributing to active sites. Temperature variation is crucial for kinetics studies, despite the complexity of thermal effects in plasma. Rigorous checks on catalyst deactivation and mass balance are essential. The relationship between kinetics and thermodynamics in plasma catalysis is explored using endothermic CO₂ decomposition and exothermic ammonia synthesis as examples. The article also discusses the complexity of plasma-catalyst interactions, the challenges in kinetic analysis, and the importance of proper blank experiments. It provides a detailed kinetic description for CO₂ dissociation and ammonia synthesis, considering both catalysis and plasma catalysis. The analysis shows that plasma activation can significantly influence reaction rates and conversions, particularly through the excitation of reactant molecules and the increased surface coverage of adsorbed species.The article discusses the application of expertise in testing heterogeneous catalysts to plasma catalysis, emphasizing the importance of independent determination of plasma-catalytic and plasma-chemical contributions. It highlights the need for non-porous catalyst particles to avoid sub-micron pores from contributing to active sites. Temperature variation is crucial for kinetics studies, despite the complexity of thermal effects in plasma. Rigorous checks on catalyst deactivation and mass balance are essential. The relationship between kinetics and thermodynamics in plasma catalysis is explored using endothermic CO₂ decomposition and exothermic ammonia synthesis as examples. The article also discusses the complexity of plasma-catalyst interactions, the challenges in kinetic analysis, and the importance of proper blank experiments. It provides a detailed kinetic description for CO₂ dissociation and ammonia synthesis, considering both catalysis and plasma catalysis. The analysis shows that plasma activation can significantly influence reaction rates and conversions, particularly through the excitation of reactant molecules and the increased surface coverage of adsorbed species.
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