Talk - Platinum electrochemistry: new views on an old problem

Talk by Marc T. M. Koper

Leiden Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands 

Abstract

Platinum is the most used electrocatalyst in electrochemical energy conversion devices such as fuel cells and electrolysers. In my talk I will highlight our recent work 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) conditions.

Tidspunkt

tor 19 okt 17
10:00 - 11:00

Arrangør

DTU Fysik

Hvor

DTU Fysik
Bygning 311
Lounge, 1. sal