Minisymposium and PhD Defence

Minisymposium – 9:30 to 11:30

HCØ, C-115

(Talks by the PhD Evaluation Committee members and guests)
 

From atoms to crystals – or how a particle is born!

Liane G. Benning, Professor, School of Earth and Environment, University of Leeds, UK

In situ techniques in heterogeneous catalysis

Alfons M. Molenbroek, Dr. Ir., General Manager, Physical Analytical Department, Topsøe, DK

Computational Spectroscopy: From gamma rays to radio frequencies

Stephan Sauer, Associate Professor, Department of Chemistry, University of Copenhagen, DK

Complexation and precipitation reactions in aqueous Cu(II)-As(V) solutions

Staffan Sjøberg, Professor, Department of Chemistry, University of Umeå, SE

PhD Defence – 14:15 and following

Auditorium 2

Molecular interactions at chalk particle surfaces

Lone Skovbjerg, cand. scient., NanoGeoScience Group, Nano-Science Center, Department of Chemistry, University of Copenhagen

Abstract

High resolution atomic force microscopy shows that chalk particle surfaces are partly covered with clay only one or a few molecular layers thick (1-4 nm). The clay nanoparticles interact more strongly with organic molecules than the biogenic calcite that comprises most of the rock. The clay has implications for how oil is retained in chalk reservoirs and how organic contaminants are transported in chalk aquifers.