Articles | Volume 17, issue 12
Atmos. Chem. Phys., 17, 7827–7837, 2017
https://doi.org/10.5194/acp-17-7827-2017
Atmos. Chem. Phys., 17, 7827–7837, 2017
https://doi.org/10.5194/acp-17-7827-2017

Research article 29 Jun 2017

Research article | 29 Jun 2017

Surface-charge-induced orientation of interfacial water suppresses heterogeneous ice nucleation on α-alumina (0001)

Ahmed Abdelmonem et al.

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Cited articles

Abdelmonem, A.: Direct molecular level characterization of different heterogeneous freezing modes on mica, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-322, in review, 2017.
Abdelmonem, A., Lützenkirchen, J., and Leisner, T.: Probing ice-nucleation processes on the molecular level using second harmonic generation spectroscopy, Atmos. Meas. Tech., 8, 3519–3526, https://doi.org/10.5194/amt-8-3519-2015, 2015.
Al-Abadleh, H. A. and Grassian, V. H.: FT-IR Study of Water Adsorption on Aluminum Oxide Surfaces, Langmuir, 19, 341–347, https://doi.org/10.1021/la026208a, 2003.
Anim-Danso, E., Zhang, Y., Alizadeh, A., and Dhinojwala, A.: Freezing of water next to solid surfaces probed by infrared-visible sum frequency generation spectroscopy, J. Am. Chem. Soc., 135, 2734–2740, https://doi.org/10.1021/ja311648q, 2013.
Anim-Danso, E., Zhang, Y., and Dhinojwala, A.: Surface Charge Affects the Structure of Interfacial Ice, J. Phys. Chem. C., 120, 3741–3748, https://doi.org/10.1021/acs.jpcc.5b08371, 2016.
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Short summary
We report the effect of surface charge on heterogeneous immersion freezing for the atmospherically relevant sapphire surface. Combining linear and nonlinear optical techniques and investigating isolated drops, we find that charge-induced surface templating is detrimental for ice nucleation on α-alumina surface. This study provides new insights into atmospheric processes and can impact various industrial and research branches, particularly climate change and tracing of water in the hydrosphere.
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