Identification of surface layer on novelty electrodes eliminating problems with their passivation
- Abstract number
- 1133
- Event
- European Microscopy Congress 2020
- DOI
- 10.22443/rms.emc2020.1133
- Corresponding Email
- [email protected]
- Session
- PST.4 - Spectroscopies in Electron, X-ray and Ion Microscopy
- Authors
- Dr. Alena Michalcova (1), prof. Bohumil Kratochvil (1)
- Affiliations
-
1. UCT Prague
- Keywords
EELS, environmental organic pollutants, passivation of electrodes
- Abstract text
The immense potential of modern electroanalytical methods in the monitoring of environmental organic pollutants is generally recognized and appreciated. Their main advantage is their low costs, variability, selectivity and easy automatization. Nevertheless, the big problem connected with their use remains to be the passivation of working electrodes. There are several ways to solve this problem. Our research is focused on use novel electrode materials more resistant toward passivation – diamond coated electrodes.
In this paper the composition of surface layer of electrodes was studied. EFTEM Jeol 2200 was used equipped with EDS detector (Oxford Instruments). It was found by EELS spectroscopy and electron diffraction that the surface layer is composed form diamond. This observation has proven that the electrode preparation was successful and opens possibilities for preparation of boron and nitrogen doped surface layers.
Authors thank for financial support by Czech Science Foundation, project No. 20-01417J.