Special Issue "Physical Chemistry of the Air-Water Interface"
A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Biosphere/Hydrosphere/Land - Atmosphere Interactions".
Deadline for manuscript submissions: closed (15 October 2018)
Prof. Dr. Agustin J. Colussi
Linde Center for Global Environmental Science, California Institute of Technology, Pasadena, CA 91125, USA
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Interests: interfacial Criegee chemistry; heterogeneous chemistry of China Haze Events; long-range ion–ion interactions at the air–water interface; properties of percolating hydrogen-bonding networks on aqueous surfaces; interfacial Fenton chemistry on aqueous organic aerosols
Interfacial water is not thin ‘water’. In the steep water density gradient present at the air–water interface (AWI), extreme anisotropy coexists with a hydrogen-bonding network constrained by the lack of inversion symmetry. These features give rise to unprecedented, unanticipated and often unimagined phenomena from what we know about bulk water. The composition of interfacial layers can also be very different from that of the bulk solutions beneath. The fascinating physical chemistry associated with these observations, however, will be not just another frontier research topic because it matters to what happens on the aerial surfaces of lungs, oceans, clouds and atmospheric aerosols. Understanding what determines the interfacial propensities of ions and molecules, how the interfacial hydrogen-bonding network mediates specific interactions between distant solutes, and how decreased hydration influences equilibria, reactivity and selectivity at the AWI are some of the outstanding issues in this field. Awareness that the AWI may appear different when probed from above and below the surface should inform the conclusions derived from future experiments. Approaches based on molecular dynamic calculations should deal with and possibly account for the collective, long-range interactions apparent in both bulk and interfacial water. Fundamental new concepts are likely to emerge from these studies.
Prof. Dr. Agustin J. Colussi
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- Non-linear surface spectroscopy
- Online electrospray ionization mass spectrometry
- Cooperative effects in water
- Hydrogen bonding in interfacial water
- Interfacial atmospheric chemistry
- Interfacial chemistry of lung epithelial fluids
- Chemical equilibria in interfacial water
- Ion hydration in interfacial water