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Dina Zakgeym

M.Sc. Dina Zakgeym

PhD Student

Team Efficient Hydrogen Release

Kontakt

Telefon: +49 9131 85-28331
E-Mail: d.zakgeym@fz-juelich.de

Adresse

Forschungszentrum Jülich GmbH
Helmholtz Institute Erlangen-Nürnberg for Renewable Energy
Egerlandstr. 3
91058 Erlangen
Germany

Research Interest

Liquid Organic Hydrogen Carriers (LOHC) provide an excellent storage medium for hydrogen. For example, Dibenzyltoluene (DBT) is a promising candidate for the storage of hydrogen via the LOHC technology. Perhydro-DBT (H18-DBT) is non-flammable and has a low toxicity, a wide liquid range, as well as a high volumetric storage density for hydrogen. However, the release of hydrogen requires reaction temperatures exceeding 250 °C due to the strongly endothermic nature of the dehydrogenation reaction. Reduced process temperatures may be realized by transferring the hydrogen stored in H18-DBT to an acceptor molecule, such as acetone, instead of releasing it. The acceptor molecule can then be dehydrogenated under milder conditions or even directly by using a fuel cell.

Transfer hydrogenationTransfer hydrogenation from H18-DBT to acetone
Copyright: D. Zakgeym

Dina Zakgeym’s research interest focusses on the development of heterogeneous catalysts, specifically for the transfer of hydrogen from H18-DBT to acetone, as well as catalyst characterization for investigations of the catalytic mechanism. The latter include, among others, chemisorption techniques for the determination of the particle size of the active component and photoelectron spectroscopy (XPS) to measure its oxidation state.

Academic development

02/2018 – 08/2018:
Master Thesis in the group of Prof. Muhler “Comparison of aerobic isopropanol oxidation over TiO2 and Au/TiO2 in the gas and liquid phase”

09/2016 – 08/2018:
Master of Science in Chemistry at the Ruhr-University Bochum

06/2016 – 09/2016:
Bachelor Thesis in the group of Prof. Morgenstern “Untersuchung von D2O und von Lithium auf einer Au(111)-Oberfläche durch Rastertunnelmikroskopie”

10/2013 – 09/2016:
Bachelor of Science in Chemistry at the Ruhr-University Bochum

Publications

  1. F. Herold, O. Leubner, P. Pfeifer, D. Zakgeym, A. Drochner, W. Qi and B. J. M. Etzold, Synthesis strategies towards amorphous porous carbons with selective oxygen functionalization for the application as reference material, Carbon, 2021, 171, 658–670.

Zusatzinformationen