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

Zachary R. Schiffman; Yuekun Yang; Barbara J. Finlayson‐Pitts; Lisa M. Wingen

doi:10.1039/d6em00197a

January 1, 2026Environmental Science Processes & Impacts

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

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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.

Implication

Examines surface chemistry of organic particles, indicating gas-phase radicals influence oxidation.

Abstract

Gas-phase HO 2 and RO 2 radicals compete for surface-bound radicals to control oxidation product distributions on organic particles, revealing that the surface chemistry of atmospheric aerosol is fundamentally coupled to gas-phase radical composition.

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Cite This Study

Schiffman et al. (2026) studied this question.

synapsesocial.com/papers/69fd7e00bfa21ec5bbf0641e https://doi.org/10.1039/d6em00197a

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

Key Points

Implication

Abstract

Discussion

Cite This Study

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

Key Points

Implication

Abstract

Discussion

Cite This Study

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