System for determing electronic properties of solid powder catalysts - potentiostat (Metrohm Autolab, model PGSTAT 302N)

The potentiostat/galvanostat (Metrohm Autolab, model PGSTAT 302N), equipped with the impedance module FRA32, allows us to determinate electronic properties of solid powder catalysts in different electrolytes with the following methods: cyclic voltammetry, impedance spectroscopy and determination of photocurrent density on the surface of catalysts obtained by exciting the catalyst with visible or UV light. The results of electrochemical measurements allow us to determine the migration rate of carrier charges and the current density on the surface of tested catalysts, which enables a more detailed insight into the operating mechanism of catalysts, for example in advanced oxidation processes for cleaning water with the use of UV or visible light. The system for determining the electronic properties consists of the potentiostat/galvanostat and a three-electrode electrochemical cell. The three-electrode electrochemical cell is made of counter electrode (Pt electrode), reference electrode (Ag / AgCl electrode), and working electrode (glassy carbon electrode).

Responsible for equipment: PhD Albin Pintar
URL: https://www.ki.si/o-institutu/raziskovalna-infrastruktura/
Sample turnaround time: 5-7 days.