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Carl von Ossietzky Universität Oldenburg 
Fakultät V - Mathematik und Naturwissenschaften
Institut für Chemie
Carl-von-Ossietzky-Str. 9-11
26129 Oldenburg

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Jungchemikerforum Oldenburg

Fachschaft Chemie

Technische Chemie 1 - Wark

Technical Chemistry - Prof. Dr. Michael Wark

Photocatalysis & sustainable feedstock utilization

Current research topics of the Wark group are:

1. Heterogeneous photocatalysis and photoelectrochemistry

  • Systems for photocatalytic pollutant degradation, hydrogen formation and CO2 reduction
  • TiO2 films with organized porosity and tailored modification

  • Stoichiometrically optimized mixed metal oxide photocatalysts (perovskites, pyrochlores, spinels)

  • Electrochemical deposition of tailored porous oxide films

2. Perovskite-based and dye-sensitized solar cells

  • Development of morphology-optimized hybrid inorganic/organic perovskite layers for solar cells

  • Scale-up of electrochemical deposition for solar cell fabrication

3. Ion conducting materials

  • Tailor-made porous oxides and metal organic frameworks (MOFs) as proton conducting materials for fuel cell membranes
  • Nanoparticle-based composites as fuel cell catalysts

  • Porous TiO2 and SnO2 systems for Li+ ion conduction

4. Bioenergy and hydrothermal carbonization

  • Hydrothermal carbonization of different waste biomasses, tailoring of the porosity of biochars for adsorption and catalysis, treatment of HTC water phases
  • Separation of CO2 from biogas by absorption

5. Process simulation

  • Modelling of extractive separations of products from fermentation processes
  • Modelling of degradation processes of fuel cells

  • Method development

Currently, the following projects (funded by third party - e.g. DFG, BMBF or industry) are running:

  • Sol-Gel Synthese von dotierten Titanaten mit gezielt veränderter Stöchiometrie (Sol gel synthesis of doped titanates with specific modified stoichiometry), Josefine Hildebrand
  • Synthese und Optimierung geordnet mesoporöser und mit ZnO-Nanapartikeln beladener TiO2-Filme (Synthesis and optimization of ordered-mesoporous TiO2-films loaded with ZnO nanoparticles), Enno Gent
  • HTC-Prozesswasser Analyse (HTC-process water analytic), Tim Woriescheck
  • Herstellung hochporöser Biokohlen mittels Hydrothermaler Carbonisierung (Production of highly porous biochars by application of hydrothermal carbonisation), Manuel Nowotny
  • Entwicklung eines Anodenmaterials für Lithium-Ionen-Batterien (Development of anode material for lithium-ion batteries), Florian Meyer

  • Ferrite für photochemische Wasserspaltung (Ferrites for photoelectrochemical water splitting), Sven Warfsmann

  • Hydorthermale Carbonisierung in Gegenwart von Salz-Wasser-Gemischen (Hydrothermal carbonization in the presence of salt-water mixtures), Hendrik Multhaupt
  • MOF-Polymer Hybridmembranen in Brennstoffzellen (MOF-polymer hybrid membranes in fuel cells), Konrad Wolkersdörfer

University funded projects

  • Lösungsbasierte planare Perovskit-Solarzellen (Solution processed planar perovskite solar cells), Markus Becker

Scholarships

  • Photocatalytic degradation of organophosphorous, carbamates and pyridazon on Titania/Zirconia nanocomposites and thin film, Anne Mbiri
  • Synthesis of novel highly porous mixed metal oxide photocatalyst composites for visible-light-driven disinfection of wastewater and production of H2, Mohammed Ismael

Master theses

  • Entwicklung eines segmentbasierten Modells zur Berechnung des realen thermodynamischen Verhaltens von Gemischen hochfunktioneller Moleküle (Method development of a segment based model for calculation of the real thermodynamic behavior of high functional molecules), Markus Graminsky
  • Prozesssimulation von Biogasanlagen (Process simulation of biogas plants), Maximilian Jaugstetter

  • Synthese von Ta2O5-Nanostrukturen zur photokatalytischen Wasserstoffproduktion (Synthesis of Ta2O5 nanostructures for photocatalytic hydrogen production), Arno Kohlsdorf

  • Einlagerung von protisch ionischen Flüssigkeiten in metalorganische Gerüststrukturen (Intercalculation of protic ionic liquids in metall organic framworks), Raoul Schaper

Bachelor theses

  • Synthese, Charakterisierung und photokatalytische Aktivität von Erdalkali-Metall-Titanate (Synthesis, characterisation and photocatalytic acitivity of earth-alkaline-metal-titanates), Christopher Rhein

(Stand: 11.03.2024)  | 
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