Molecular Electron-Transfer in Systems Relevant to Geological Sciences: Transport and Electrochemical Reactions in Compartments

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Electroanalytical techniques, in particular those related to molecular electrochemistry (e.g., cyclic voltammetry), and those with lateral resolution defined by ultramicroelectrodes, will be applied in order to characterize chemical, in particular catalytic, reactions as well as mass transport by diffusion, convection, and/or migration in porous systems of relevance to the geological sciences. The project deals with processes at the molecular and the grain scale. Experimental studies will be accompanied by theoretical modelling approaches. We enhance the knowledge about chemical and transport processes at the phase boundaries between water and non-aqueous material, in particular the time dependent transport through such an interface upon polymerisation (ageing). A second topic will be the detailed mechanistic study of new reactive compounds for catalysts embedded in porous systems. Finally, numerical modelling will include the combination of electron transfer, chemical reaction and various transport types within complex porous matrix arrangements, and complement the experimental results.