Impedometric zeolite hydrocarbon sensors with a chromium oxide intermediatelayer show a very promising behavior with respect to sensitivity and selectivity. Theunderlying physico-chemical mechanism is under investigation at the moment. In order toverify that the effect occurs at the electrode and that zeolite bulk properties remain almostunaffected by hydrocarbons, a special planar setup was de...

5 1 Conceptual approach 8 1.1 Scope of this thesis 8 1.2 Electronic and geometric effects in bimetallic catalysts 10 1.3 Mixed Oxides 11 1.4 (Strong) metal-support interaction 12 1.5 The role of the Pd-hydride phases 14 1.6 Oxide-supported Pd bimetallics in methanol steam reforming 14 1.7 Model Systems 21 2 Appendix: Experimental approach and methods 25 2.1 Electron Microscopy and related techn...

the kinetics of hydrogen evolution reaction (her) was studied in 1m naoh at various temperatures (298 to 358 k) on ni-p-c (composite electrodes. the electrochemical efficiency of the electrodes has been evaluated on the basis of electrochemical data obtained from the steady-state polarization tafel curves, electrochemical impedance spectroscopy (eis) and cyclic voltammetry (cv) in 1m naoh solut...