ISIS Neutron and Muon Source Data Journal

Autoxidation vs. Ozonolysis of Surfactant Mixtures Containing Poly-unsaturated Fatty Acids Emitted during Urban Cooking

Abstract: Surface-active molecules with water-loving and water-hating parts have been found to contribute substantially to the man-made urban aerosol load originating from cooking processes. These molecules will accumulate at the surface of a water droplet in the atmosphere, affect its properties and therefore have significant impact on atmospheric chemistry, meteorology and ultimately climate science. Our work looks at air-water monolayers composed of mixtures of (mono un-)saturated (oleic-its methyl ester-and stearic acids) and poly-unsaturated fatty acids (linoleic acid) and compares their oxidation kinetics with that of single component films at atmospherically relevant (low) temperatures.We address the question of autoxidation competing with ozonolysis as well as that of which reaction products (if any) remain at the interface as a function of temperature, composition and ozone concentration.

Principal Investigator: Professor Christian Pfrang
Local Contact: Dr Maxmilian Skoda
Experimenter: Mr Ben Woden
Experimenter: Dr Adam Milsom

DOI: 10.5286/ISIS.E.RB1910615

ISIS Experiment Number: RB1910615

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Christian Pfrang et al; (2019): Autoxidation vs. Ozonolysis of Surfactant Mixtures Containing Poly-unsaturated Fatty Acids Emitted during Urban Cooking, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910615

Data is released under the CC-BY-4.0 license.