Electrochemistry of platinum: new views on an old problem

Talk by Professor Marc T. M. Koper 

Leiden Institute of Chemistry, Leiden University, The Netherlands

Abstract

Platinum is the most used electrocatalyst in electrochemical energy conversion devices such as fuel cells and electrolysers. In this talk I will highlight the recent work of my group on understanding the surface chemistry of platinum in an aqueous electrolyte, by combining single-crystal electrochemistry, density functional theory calculations, ultra-high-vacuum modeling, in situ spectroscopy and in situ electrochemical scanning tunneling microscopy.

I will challenge some existing explanations and interpretations of platinum electrochemistry, and show the sometimes surprising surface disordering of platinum that happens at both positive (anodic) and negative (cathodic) potentials. 

 

Tidspunkt

fre 04 okt 19
9:00 - 10:00

Arrangør

DTU Fysik

Hvor

DTU Fysik
Bygning 311
1. sal/ Loungen