Analysis of ammonia synthesis pathways from nitrogen–hydrogen plasma on Ni-based catalysts: a combined experimental and simulation study

Key Points

• This analysis aims to understand how nitrogen is activated and ammonia is synthesized using Ni-based catalysts in plasma environments.
• Conducted optical emission spectroscopy (OES) to identify reactive species
• Developed kinetic models to analyze concentrations of these species
• Created mechanistic schematics to illustrate the activation and formation processes
• Identified key reactive species involved in nitrogen activation
• Demonstrated effective ammonia production on plasma-coupled Ni catalysts
• Revealed the detailed mechanism of ammonia formation through N₂ activation