Surface-sensitive spectrometry: new insights into radical reactions at interfaces

Key Points

• The aim is to understand how gas-phase radicals affect surface reactions on organic particles and oxidation product distributions.
• Examined interactions between gas-phase HO2 and RO2 radicals and surface-bound radicals.
• Analyzed oxidation product distributions from these radical reactions on organic aerosol surfaces.
• HO2 and RO2 radicals significantly alter oxidation product distributions, affecting surface chemistry.
• The composition of gas-phase radicals is crucial for surface reactions on atmospheric aerosols.