Investigating the Ubiquitous Presence of Nanometric Water Films on Surfaces at the Nanoscale

CIC nanoGUNE Seminars

Speaker

Alberto Verdaguer Prats, Institute of Materials Science of Barcelona (ICMAB-CSIC), Barcelona

When

2022/10/24
13:00

Place

nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian

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**Investigating the Ubiquitous Presence of Nanometric Water Films on Surfaces at the Nanoscale** Albert Vedaguer Prats Institute of Materials Science of Barcelona (ICMAB-CSIC), Barcelona When we speak of nanometric water films on surfaces we are speaking about a truly ubiquitous phenomenon in nature. All surfaces exposed to ambient conditions are covered by a thin film of water that affects or mediates surface chemistry, general physical-chemical processes on surfaces, and even solid-solid interactions. We have investigated this phenomenon for over a decade by exploiting dynamic atomic force microscopy and x-ray photoelectron spectroscopy. I will discuss the different technical approaches that we have been using to study water on surfaces at the nanoscale and our finding on a wide range of materials and applications from graphene, to ferroelectric oxides, ionic crystals, etc. Finally I will describe our recent lines centered on the study of surfaces to promote ice nucleation. * “Investigating the Ubiquitous Presence of Nanometric Water Films on Surfaces”. S. Santos et al. J. Phys. Chem. C 125 (29), 15759-15772 (2021). * “Water at surfaces and interfaces: From molecules to ice and bulk liquid”. T.K. Shimizu et al. Prog. Surf. Sci. 93, 87-107 (2019). * “Imaging Water Thin Films Ambient Conditions Using Atomic Force Microscopy” S. Santos and A. Verdaguer Materials 9, 182 (2016). **Host:** A. Bittner