ISIS Neutron and Muon Source Data Journal

Oxidation of a bilayer of DOPC by aqueous ozone - a chemical, kinetic and mechanistic investigation

Abstract: Mineral aerosol in the atmosphere is a major part of the Earth’s aerosol budget. Organic films on these aerosols affect the aerosol’s ability to promote cloud formation and alter its optical properties. Chemical oxidation of this film will cause changes in cloud formation and atmospheric light scattering – both effects in modern climate change. Using neutron reflection to record (1) the oxidation kinetics of a bilayer on a quartz substrate as a proxy for these organic films will allow the atmospheric lifetime to be estimated (and compared to a typical mineral aerosol lifetime of 10 days) and (2) the change in film thickness during oxidation to allow the optical properties of such an aerosol to be calculated with Mie scattering. The oxidant will be the prevalent ozone molecule, contained in cloud water. Its reactivity will be compared to that of OH radicals from recent work.

Principal Investigator: Professor Martin King
Experimenter: Dr Katherine Thompson
Experimenter: Dr Thomas Arnold
Experimenter: Professor Adrian Rennie
Experimenter: Mr Tobias Robson
Experimenter: Dr Rebecca Welbourn

DOI: 10.5286/ISIS.E.RB1820245

ISIS Experiment Number: RB1820245

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 Martin King et al; (2018): Oxidation of a bilayer of DOPC by aqueous ozone - a chemical, kinetic and mechanistic investigation, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820245

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