Electrochemical microcalorimetry - measuring the entropy of electrochemical reactions
CIC nanoGUNE Seminars
- Speaker
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Rolf Schuster, Karlsruhe Institute of Technology, Germany
- When
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2019/06/24
13:00 - Place
- nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
- Add to calendar
-
iCal
We study heat effects during electrochemical surface reactions with minute
conversions. The heat which is reversibly exchanged at an electrode upon
electrochemical processes is proportional to the entropy change during the
reaction, including also non-Faradaic side processes like coadsorption or
solvent reordering. It therefore provides complementary information to the
current-potential relations, obtained by conventional electrochemical methods
like cyclic voltammetry. After a general introduction we will give examples
for the role of entropy during anion adsorption and for the identification of
side processes during underpotential metal-deposition. The time-dependent
entropy evolution during an electrochemical reaction, i.e., Cu-bulk
deposition, will also be discussed.
**Host** : A.M. Bittner