ISIS Neutron and Muon Source Data Journal

Oxidation of bilayer of DPPC on a mineral interface by aqueous OH radical– kinetics and mechanistic information for Atmospheric Science

Abstract: Oxidation of atmospheric aerosol can produce cloud condensation nuclei capable of changing the reflectivity and lifetime of clouds. The oxidation of organic film on atmospheric mineral dust may activate mineral dust into cloud droplets. To assess the atmospheric importance the chemical lifetime of the organic material to a common atmospheric oxidant (OH radical) must be measured and compared to deposition lifetime of the mineral aerosol (4-10 days). The chemical lifetime will be assessed by measuring the rate of oxidation of a bilayer of a lipid DPPC from the solid-liquid interface of a silica mineral window, using neutron reflection. Selective deuteration, the ability to measure film thickness and amount of material at the solid-liquid interface will allow chemical mechanism to be deduced. Preliminary studies show the experiment viable, and these data are needed for publication.

Experimenter: Professor Martin King
Local Contact: Dr Nina-Juliane Steinke
Experimenter: Professor Adrian Rennie
Experimenter: Miss Rosalie Shepherd
Experimenter: Dr Andy Ward
Local Contact: Dr Christy Kinane

DOI: 10.5286/ISIS.E.RB1520396

ISIS Experiment Number: RB1520396

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; (2016): Oxidation of bilayer of DPPC on a mineral interface by aqueous OH radical– kinetics and mechanistic information for Atmospheric Science, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520396

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