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SOLWET SIGNED

Electron Transfer Across Solid/Liquid Interfaces: Elucidating Elementary Processes from Femtoseconds to Seconds

Total Cost €

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EC-Contrib. €

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Partnership

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Project "SOLWET" data sheet

The following table provides information about the project.

Coordinator
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV 

Organization address
address: HOFGARTENSTRASSE 8
city: MUENCHEN
postcode: 80539
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙250˙000 €
 EC max contribution 2˙250˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-COG
 Funding Scheme ERC-COG
 Starting year 2018
 Duration (year-month-day) from 2018-08-01   to  2023-07-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV DE (MUENCHEN) coordinator 2˙250˙000.00

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 Project objective

Building fuel cells, electrolyzers or photoelectrochemical cells based on water (photo)electrolysis is extremely challenging. One origin of this challenge is the complexity of the underlying physical chemistry. Most such devices require transfer of electrons between solid(s) and water and thus building the best possible devices requires understanding the link between transient changes in bulk solid electronic structure, interfacial electronic structure and interfacial chemistry. Essentially all existing approaches address only part of this picture: e.g. they only probe electronic structure (optical absorption), or extracted current or provide elemental insight but are insensitive to the presence of hydrogen (x-ray absorption).

In SOLWET, I will address this gap using interface-specific optical spectroscopies, in the visible and infrared, to probe interfacial electronic and vibrational transitions and their coupling. By combining these probes with an additional intense laser pulse I will watch (photo)electrolysis of water in real time as it happens. In particular, I will directly probe the coupling of transiently perturbed solid electronic structure to interfacial electronic structure and watch how this perturbation drives water’s oxidation, for a hematite photoanode, or reduction, for a Pt cathode, through the interfacial vibrational response. By describing how these couplings change with solid modification (e.g. an alumina overlayer on hematite) or changes in aqueous solution composition (e.g. changing the pH in contact with Pt) the results of SOLWET will offer the physical insights necessary to build the best possible hematite and Pt containing photoelectrochemical devices. Moreover, because the novel all-optical tools developed in SOLWET are not system-specific, the approach demonstrated in this work will be widely applicable.

 Publications

year authors and title journal last update
List of publications.
2019 Igor Ying Zhang, Gregor Zwaschka, Zhenhua Wang, Martin Wolf, R. Kramer Campen, Yujin Tong
Resolving the chemical identity of H 2 SO 4 derived anions on Pt(111) electrodes: they\'re sulfate
published pages: 19147-19152, ISSN: 1463-9076, DOI: 10.1039/c9cp03397a
Physical Chemistry Chemical Physics 21/35 2020-04-03
2019 Tobias Garling, R. Kramer Campen, Martin Wolf, Martin Thämer
A General Approach To Combine the Advantages of Collinear and Noncollinear Spectrometer Designs in Phase-Resolved Second-Order Nonlinear Spectroscopy
published pages: 11022-11030, ISSN: 1089-5639, DOI: 10.1021/acs.jpca.9b09927
The Journal of Physical Chemistry A 123/51 2020-04-03
2019 G. Zwaschka, Y. Tong, M. Wolf, R. Kramer Campen
Probing the Hydrogen Evolution Reaction and Charge Transfer on Platinum Electrodes on Femtosecond Timescales
published pages: 2675-2682, ISSN: 2196-0216, DOI: 10.1002/celc.201900336
ChemElectroChem 6/10 2020-04-03
2019 Riko Kiessling, Yujin Tong, Alexander J. Giles, Sandy Gewinner, Wieland Schöllkopf, Joshua D. Caldwell, Martin Wolf, Alexander Paarmann
Surface Phonon Polariton Resonance Imaging Using Long-Wave Infrared-Visible Sum-Frequency Generation Microscopy
published pages: 3017-3023, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.9b01335
ACS Photonics 6/11 2020-04-03

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