Articles | Volume 25, issue 6
https://doi.org/10.5194/acp-25-3503-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-3503-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 Mar 2025
Research article |
| 25 Mar 2025
| 25 Mar 2025
Boosting aerosol surface effects: strongly enhanced cooperative surface propensity of atmospherically relevant organic molecular ions in aqueous solution
Harmanjot Kaur
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
Stephan Thürmer
Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, 606-8502 Kyoto, Japan
Shirin Gholami
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Bruno Credidio
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Florian Trinter
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
Debora Vasconcelos
Chemical and Biomolecular Physics, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
Ricardo Marinho
Institute of Physics, University of Brasília (UnB), 70.919-970, Brasília, Brazil
Institute of Physics, Federal University of Bahia, 40.170-115, Salvador, BA, Brazil
Joel Pinheiro
Institute of Physics Gleb Wataghin, University of Campinas, 13083-859 Campinas, SP, Brazil
Hendrik Bluhm
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Arnaldo Naves de Brito
Institute of Physics Gleb Wataghin, University of Campinas, 13083-859 Campinas, SP, Brazil
Gunnar Öhrwall
MAX IV Laboratory, Lund University, 22100 Lund, Sweden
Bernd Winter
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
Olle Björneholm
CORRESPONDING AUTHOR
Chemical and Biomolecular Physics, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
Data sets
Strongly Enhanced Cooperative Surface Propensity of Atmospherically Relevant Organic Molecular Ions in Aqueous Solution – data (Version 1) H. Kaur et al. https://doi.org/10.5281/zenodo.12644492
Short summary
Understanding the surface composition of aerosols is crucial for advancing climate models. We investigated the interface of single-component and mixed aqueous solutions of atmospherically relevant carboxylic acid and alkyl-ammonium ions using liquid-jet photoelectron spectroscopy. An exponential increase in surface propensity as a function of chain length was found for the single species, and cooperative effects in the mixtures cause a further drastic increase in surface solute concentration.
Understanding the surface composition of aerosols is crucial for advancing climate models. We...
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