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Seminar by Prof. Marialore Sulpizi

Johannes Gutenberg University Mainz (Germany)

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06 Jul 2018 14:00
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06 Jul 2018 15:00
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Lecture room 2009, Jülich GRS building (16.15)

Solid/Liquid Interfaces: Structure, dynamics and spectroscopy

Liquid-solid interfaces are ubiquitous and responsible for a number of phenomena encountered in biological, chemical and physical processes. Surface-induced changes of material properties are not only important for the solid support but also for the liquid itself.
Among properties controlled by the specific interactions at solid/liquid interface is, e.g., crystallization and shape selective crystal growth. This is fundamental for example to the synthesis of nanoparticles with specific tailored shape/size, where the interaction between soft (surfactants/solution) and hard matter (metal, oxides), which occurs at the interface, is the key do develop unique structural properties.
I will present a few examples from my research activity where atomistic simulations, also including electronic structure, permit to unveil the peculiar properties of solid/liquid interfaces.
I will focus, in particular, on recent progresses in the calculation and interpretation of interface selective vibrational spectra [1-3], which permit to elucidate structural and dynamical properties of the hydrogen bond.
I will also present some recent results on the investigation of anisotropic growth in nanoparticles, with focus on the role of surfactants, ions and polypeptides in shaping the anisotropic growth [4-6].

BIBLIOGRAPHY

1. R. Khatib and M. Sulpizi J. Phys. Chem. Letters 2017 DOI:10.1021/acs.jpclett.7b00207.
2. R. Khatib, E. H. G. Backus, M. Bonn, M.-J. Perez-Haro, M.-P. Gaigeot and M. Sulpizi Scie. Rep. 2016, 6, 24287.
3. D. Lesnicki and M. Sulpizi J. Phys. Chem. B, 2018 DOI: 10.1021/acs.jpcb.8b04159
4. S.K. Meena and M. Sulpizi Angewandte Chemie International Edition 2016 DOI: 10.1002/anie.201604594
5. S. K. Meena, S. Celiksoy, P. Schäfer, A. Henkel, C. Sönnichsen, M. Sulpizi, Phys. Chem. Chem. Phys., 2016, 18, 13246-13254.
6. I. Lorenzo Geada, H. Ramezani-Dakhel, T. Jamil, M. Sulpizi, H. Heinz, 2018 Nat. Comm. 9, 716.


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