Research Projects - water splitting, hydrogen production & co
Chemical and electronic modifications and kinetic investigations on photocatalysts with defect-pyrochlore structure for water splitting
The aim of this project is the design of tungsten based defect-pyrochlores for photocatalytic water splitting in visible light. Nanostructured or mesoporous tungsten oxides are synthesised with solid-state, solvothermal or soft-templating methods and subsequently characterised in photocatalytic measurements. By ion-exchange with n s2 elements or lattice substitution with 3d transition metal ions the materials are activated for use in visible light.
Photocataltic Quinoline-Produktion from nitroaromatic compounds -QuinoLight-
Aim of this project is the preparation and optimisation of mesoporous hybrid materials for apllication as heterogeneous photo- and acid catalysts in the systhesis of heteroaromatic compounds, e.g. quinolines.
Electro- and Photocatalytic CO2 reduction with [NiFe]-Chalcogenides (Mid 2018)
Aim of this project is the development of Nickel-Iron-Oxysulfide nanoparticles for CO2 reduction.
Project partner: Dr. Ulf-Peter Apfel (Ruhr-Universität Bochum)
Porous, electrospun fiber mats with high proton conductivity for composite membranes (End 2019)
The aim of this project is the production of flexible SiO2 fiber mats via electrospinning, which can be functionalized with sulfonic acid groups and benzimidazole groups for high proton conductivity. Different strategies such as the spinning of already functionalized SiO2 particles or the post-synthetic functionalization of SiO2 fiber mats were investigated. The produced fiber mats were tested for their proton conductivity in defined air humidity and temperature-dependent using impedance spectroscopy.
CO2SimO - Photoelectrochemical CO2 reduction with simultaneous oxidative recovery (Beginning 2020)
The CO2SimO project will develop a technology that uses solar energy to convert the greenhouse gas carbon dioxide (CO2) into the energy source methane and will at the same time produce the important bleaching and disinfecting agent hydrogen peroxide. This photoelectrochemical cell (PEZ) is realized by us in cooperation with 2 companies, two research institutes and the University of Hanover. The AG Marschall is developing new photocatalysts, new oxides that can convert CO2 using solar energy.
Research Scholarship of the Max-Buchner Research foundation:
Development of proton conducting inorganic-organic hybrid materials as additives for fuel cell membranes (Mid 2020)
The project investigates inorganic-organic hybrid materials as additives for the development of fuel cell membranes for a more efficient use of hydrogen. The membrane in a polymer electrolyte membrane (PEM) fuel cell (FC) is an important component of a PEMFC and has the function of transporting protons from the anode of the fuel cell to the cathode. At the same time, it must be impermeable to gas. An inefficient proton transport reduces the efficiency of the PEMFC immensely. The development of performance-enhancing additives therefore plays a key role for a sustainable future and efficient use of emission-free, green hydrogen.