What question did this study set out to answer?

To elucidate the chemical mechanism driving spontaneous molecular chlorine production from chloride ions at the interface of acidic microdroplets.

August 14, 2026Journal of the American Chemical Society

Spontaneous ChlorineGeneration via Interfacial Oxidationof Chloride by O2 on Acidic Microdroplets

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Authors

SLShuying LiShandong Jianzhu University ZWZhuo WangBeijing Institute of Technology YCYiqun CaoCentral Pollution Control Board

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Implication

Mechanistic investigation reveals spontaneous chlorine production on acidic microdroplets, indicating atmospheric models underestimate reactive halogen capacity.

Key Points

To elucidate the chemical mechanism driving spontaneous molecular chlorine production from chloride ions at the interface of acidic microdroplets.
Investigated interfacial reaction pathways between chloride ions, protons, and molecular oxygen across gas–liquid microdroplet interfaces.
Assessed the concurrent production of gas-phase active halogens and particulate reactive oxygen species under simulated atmospheric conditions.
Molecular oxygen spontaneously oxidizes chloride at the acidic microdroplet interface, releasing gaseous molecular chlorine and hydroxyl radicals.
Protons enrich chloride at the gas–liquid boundary and mediate electron transfer, circumventing the consumption of atmospheric oxidants like ozone.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a7ec7bab70b84ec8b914560 https://doi.org/10.1021/jacs.6c10175

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Implication

Mechanistic investigation reveals spontaneous chlorine production on acidic microdroplets, indicating atmospheric models underestimate reactive halogen capacity.

Spontaneous ChlorineGeneration via Interfacial Oxidationof Chloride by O2 on Acidic Microdroplets

Discussion

Member takes

Implication

Key Points

Cite This Study

Spontaneous ChlorineGeneration via Interfacial Oxidationof Chloride by O2 on Acidic Microdroplets

Discussion

Member takes

Implication

Key Points

Cite This Study

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