November

Bild des Monats November 2017

Hier finden Sie wechselnde Einblicke in die Arbeiten der am LaMa beteiligten Arbeitsgruppen. Eine Sammlung aller bisher erschienenen Bilder finden sie in der Galerie der Bilder des Monats.

Earth-abundant nanostructures for solar energy conversion

The search for new and significantly improved solar energy conversion systems is currently a highly active research field world-wide and attracts major cross-disciplinary interest due to its relevance for solar fuel generation, production of clean drinking water, and greenhouse gas emission reduction. However, this search must include cheap and earth-abundant materials, in order to make a solar fuels-based economy cost-effective.

In this context, the group of Dr. Roland Marschall and his co-workers has developed agglomerate-free aqueous colloids of MgFe₂O₄ nanoparticles (~6 nm) by fast non-aqueous microwave-assisted solution phase synthesis. Colloidal stabilization of the nanocrystals was achieved either in aqueous and non-aqueous media, partly even during the microwave-assisted synthesis. Their applicability in photocatalytic oxidation reactions was investigated, indicating that surface stabilization can positively influence compound adsorption and enhance pollutant degradation.

Further details can be found in a recent publication:

K. Kirchberg et al., Stabilization of Monodisperse, Phase-Pure MgFe₂O₄ Nanoparticles in Aqueous and Non-Aqueous Media and Their Photocatalytic Behavior. J. Phys. Chem. C, Just Accepted Manuscript (Nov. 2017).

Dieses Bild wurde eingereicht von Dr. Roland Marschall.