Flexible metal-organic frameworks: the fascinating world of crystalline switches

Date

Mar 3, 2017

Time

1:00 PM - 2:00 PM

Speaker

Dr. Irena Senkovska

Affiliation

TU Dresden

Language

en

Main Topic

Materialien

Other Topics

Materialien, Physik

Host

Kristina Krummer

Description

Since the mid-90s metal–organic frameworks (MOFs) have been a novel class of porous crystalline materials formed by coordinative bonds of multidentate ligands to metal atoms (or metal clusters). Flexible MOFs or so called soft porous crystals represent a subclass of MOFs that shows distinct cooperative structural transformations induced by physical or chemical stimuli resulting in a porosity switching. Often, the phase transitions are triggered by adsorption or desorption of guest molecules and are characterized by an activation energy barrier causing a hysteresis in the adsorption isotherm. Due to their capability to undergo stimulated structural transformations, soft porous crystals are often discussed as materials with huge application potential in gas separation processes, sensor technology, and catalysis. In the talk, I will give an introduction to the phenomenon of flexibility in MOFs and then address aspects of tailoring their responsive properties.

Links

• Seminars at the IFW

Last modified: Mar 3, 2017, 9:00:16 AM