Three-dimensional network structure of the highly porous and flexible material DUT-49 (DUT= Dresden University of Technology) which displays the NGA-effect. Credit: Image courtesy of Technische Universitaet Dresden
Prof. Dr. Stefan Kaskel et al have found a new phenomenon in the field of gas-solid interactions: the so-called Negative Gas Adsorption (NGA). Adsorption refers to the process by which molecules of a gas collect on the surface of a solid. Metal-organic frameworks are highly porous materials which are widely used for adsorptive applications such as in the reduction of pollutant emissions.
The scientists from Dresden, Berlin and France have now succeeded in demonstrating that these materials can dynamically change their structures...
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