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Masterprojekt/Masterarbeit:Characterization of novel cathodes for hydrogen evolution in microbial electrolysis cells

Hydrogen is often considered the energy vector of the future, since hydrogen combustion result in water as only product, therefore presenting itself as a possible green alternative to fossil fuels for a “CO2-neutral” society.

Microbial electrolysis cells (MEC) offers the advantage of producing hydrogen at the cathode with simultaneous treatment of wastes at the bio-anode. Another advantage of MEC is that hydrogen can be generated with lower electricity demand compared to abiotic water electrolyzers, as part of the energy comes from the oxidation of waste water or similar biomass resources, making MEC a promising environmental technology for energy recovery from wastes (circular economy)

One of the limitations of MEC is the low hydrogen capture efficiency due to hydrogen consumption by hydrogenophilic microorganisms.

The aim of this Master Thesis/Project is to characterize novel cathodes for hydrogen evolution in MEC, which could possibly hinder the hydrogen losses and the growth of hydrogen-consuming microorganisms at the cathode.

The student candidate will assembly MEC flow cells set-ups and characterize the cathodic compartment from the electrochemical point of view (cyclic voltammetry, polarization curves, chronoamperometry) the biological point of view (fluorescence microscopy, qPCR) and the chemical kinetics point of view, evaluating the hydrogen capture efficiency with gas-chromatography analysis.

Language:

English

Period of time:

6 months

Supervisors:

Prof. Dr.-Ing habil. Sven Kerzenmacher – kerzenmacherprotect me ?!uni-bremenprotect me ?!.de

M.Sc. Simone Colantoni - simone.colantoniprotect me ?!uni-bremenprotect me ?!.de

www.uvt.uni-bremen.de