This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Impact of surfactant interactions on fate of marine aerosols: NO3-initiated oxidation of cerebroside/fatty acid mixtures studied by NR/IRRAS
Abstract: Mixed films of palmitic acid (PA) and galactocerebrosides (GCB) –a proxy for marine aerosol– exhibit attractive interactions due to H-bonding of galactose and carbonyl head groups. We will expose these films to nitrate radicals (NO3) to investigate the impact of atmospheric ageing on surface interactions and ordering. We will harvest the recently developed capability of INTER to simultaneously study deuterated surfactants by NR and obtain information about hydrogenated co-surfactants (as well as the deuterated surfactant) by IRRAS. We will study the oxidation of PA/GCB mixtures (with and without added Ca2+) and then –in an exploratory study– replace PA by its unsaturated analogue palmitoleic acid (POA). We will thus be able to quantify the impact of H-bonding/Ca2+ on the oxidation kinetics and on the material left at the interface, key for the aerosol droplet's fate and cloud formation.
Principal Investigator: Professor Christian Pfrang
Experimenter: Mr Ben Woden
Experimenter: Dr Maxmilian Skoda
Experimenter: Mr Matthew Hagreen
DOI: 10.5286/ISIS.E.RB1610500
ISIS Experiment Number: RB1610500
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.81735476 | INTER | 23 July 2019 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
Select the data format above to find
out more about it.
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; (2016): Impact of surfactant interactions on fate of marine aerosols: NO3-initiated oxidation of cerebroside/fatty acid mixtures studied by NR/IRRAS, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610500
Data is released under the CC-BY-4.0 license.