Wagner

Bild: Kathrin Velte

Stephan Wagner, M.Sc.

Working Area(s)

Mössbauer Spectroscopy (Fe, Sn), Fuel Cells, Synchrotron based techniques, Fe-N-C-Catalysts

Platform

Solar Fuels

Title of dissertation

Entwicklung eines neuartigen in-situ Reaktors für Kernresonanzexperimente zum Studium von Prozessen in eisenhaltigen heterogenen Katalysatoren und Brennstoffzellen unter Reaktionsbedingungen

Education

Since 09/2016: PhD candidate and scholarship holder of the Graduate School of Excellence Energy Science and Engineering

10/2014 – 08/2016: M.Sc. in Material Science at the Technische Universität Darmstadt, Specialization: UH-V, HV-systems, Electrochemistry, Material Characterization, MBE, XPS, catalysts (HER). Master Thesis: „Synthesis and Characterization of NiOx and NiNx Catalysts for Electrochemical Water Splitting“,

10/2009 – 09/2014: B.Sc. in Material Science at the Technische Universität Darmstadt, Bachelor Thesis: “Untersuchungen zur Perkolationsschwelle von Cu/C-Mischungen” (Schunk Kohlenstofftechnik GmbH).

Publications

1. Ziegler, J.; Yang, F.; Wagner, S.; Kaiser, B.; Jaegermann, W.; Urbain, F.; Becker, J.-P.; Smirnov, V.; Finger, F., Interface engineering of titanium oxide protected a-Si:H/a-Si:H photoelectrodes for light induced water splitting. Applied Surface Science 2016, 389, 73-79.

2. Wagner, S.; Martinaiou, I.; Shahraei, A.; Weidler, N.; Kramm, U. I., On the effect of sulfite ions on the structural composition and ORR activity of Fe-N-C catalysts. Hyperfine Interact 2018, 239:10.

3. Leonard, N. D.; Wagner, S.; Luo, F.; Steinberg, J.; Ju, W.; Weidler, N.; Wang, H.; Kramm, U. I.; Strasser, P., Deconvolution of Utilization, Site Density, and Turnover Frequency of Fe–Nitrogen–Carbon Oxygen Reduction Reaction Catalysts Prepared with Secondary N-Precursors. ACS Catalysis 2018, 1640-1647.

4. Martinaiou, I.; Wolker, T.; Shahraei, A.; Zhang, G.-R.; Janßen, A.; Wagner, S.; Weidler, N.; Stark, R. W.; Etzold, B. J. M.; Kramm, U. I., Improved electrochemical performance of Fe-N-C catalysts through ionic liquid modification in alkaline media. Journal of Power Sources 2018, 375, 222-232.

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