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Our Goals

On a global scale, sustainability requires the closing of all materials cycles. A living earth in which circular flows of matter are sustained, requires a contiuous influx of energies driving these cycles. As the sun is the only inexhaustible source of energy on a human time scale, sustainable energy development must aim at utilizing renewable energies (which mostly are derived from solar energy), while at the same time minimizing the production of waste and the use of non-renewable resources.
•Energy and Climate

Enabling the use of Thin Membranes in Water Electrolyzers using a Recombination Catalyst

The conversion efficiency for green hydrogen production in a polymer electrolyte water electrolyzer (PEWE) is strongly influenced by the ohmic cell resistance and therefore the thickness of the membrane used. The use of thin membranes (~50 micron or below) is limited by gas crossover of H2 and O2, which can lead to the formation of explosive gas mixtures. The incorporation of a recombination catalyst provides remedy and allows a more dynamic operating mode.

Broschüre Energie und Umwelt

modval2018.pdf
•Energy and Climate

Polybenzimidazole Membrane Design Principles for Vanadium Redox Flow Batteries

Energy storage technologies with long storage duration are essential to stabilize electricity grids with a high share of intermittent renewable power. In a redox flow battery, the electrochemical conversion unit, where the charging and discharging reaction takes place, is spatially separated from the energy storage medium. In the all-vanadium redox flow battery (VRFB), a sulfuric acid aqueous electrolyte with dissolved vanadium ions is used as the storage medium.

Laboratory for Multiscale Materials Experiments (LMX) Scientific Publications

A dynamic double layer as the origin of the mass-dependent ion acceleration in laser-induced plasmas
Ojeda-G-P A, Yao X, Bulgakova Nadezhda M, Bulgakov Alexander V, Lippert T

Applied Physics A
125,
71
(2019).

DOI: 10.1007/s00339-018-2345-3

Bulk single-crystal growth of the theoretically predicted magnetic Weyl semimetals RAlGe ( R = Pr, Ce)
Puphal P, Mielke C, Kumar N, Soh Y, Shang T, Medarde M, White Jonathan S, Pomjakushina E

Physical Review Materials
3,
024204
(2019).