Spontaneous Production of H2O2 at the Liquid–Ice Interface: A Potential Source of Atmospheric Oxidants

We present experimental evidence for the spontaneous production of hydrogen peroxide (H2O2) at the liquid–ice interface during the freezing of dilute salt solutions. Specifically, sample solutions containing NaCl, NaBr, NH4Cl, and NaI at concentrations between 10–6 and 10–1 M were subjected to freez...

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Veröffentlicht in:	Environmental science & technology 2024-12, Vol.58 (51), p.22691-22699
Hauptverfasser:	Song, Junwei, Werner, Laura, Da Silva, Yoan Carreira Mendes, Theis, Alexander, Donaldson, D. James, George, Christian
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonium chloride Anions Electric fields Free radicals Freezing Hydrogen peroxide Hydrogen production Hydroxyl radicals Ice Ice formation Occurrence, Fate, and Transport of Contaminants in Indoor Air and Atmosphere Oxidants Oxidation Oxidizing agents Saline solutions Salts Sodium chloride
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