Talk: Why electrolytes can significantly control the catatlytic activity. An experimental approach

Talk by Aliaksander Bandarenko

Tenure-Track Professor, Energy Conversion and Storage, Department of Physics, Technische Universität München, München, Germany.

Abstract

Electrocatalysis normally tries to find a link between the electrode surface structure, its composition and the resulting activity to improve the performance of  electrolyzers, fuel cells, and batteries. However, this field currently encounters certain unexpected obstacles related to the prediction and explanation of a big influence of seemingly inert electrolyte components on the activity. In the presentation, results of systematic investigations of various electrocatalytic systems using a unique laser-induced current transient technique are discussed to approach the answer to a fundamental question: why can electrolytes control the activity so drastically? Different metal electrodes immersed in acidic solutions of different pHs and in near-to-neutral electrolytes containing Na+ and K+ served as model systems.

Tidspunkt

tir 03 sep 19
9:00 - 10:00

Arrangør

DTU Fysik

Hvor

DTU Fysik
Bygning 311
1. sal/Loungen