New materials will have applications in electronic and optoelectronic devices, electrocatalysis, electroanalysis and sensors
Four different topological types, named UCR-20, UCR-21, UCR-22 and UCR-23, that the new zeolite analog materials possess. Each topological type can be made in a variety of chemical compositions. (A) The 3-dimensional sodalite-based framework in UCR-20. (B) Supertetrahedral clusters are joined into a 6-membered ring in UCR-21 with a cubic ZnS (zinc sulfide) type framework. (C) The 3-dimensional framework of UCR-22 with the cubic ZnS type framework decorated with the core-less supertetrahedral cluster. (D) The 3-dimensional framework of UCR-23 showing channels with the pore size consisting of 16 tetrahedral atoms.
Scientists at the University of California, Riverside have synthesized a large family of semiconducting porous materials that have an unprecedented and diverse chemical composition.
The new materials show several different properties such as photoluminescence, ion exchange, and gas sorption. They also have a large surface area and uniform pore sizes. In addition, they have a pore size larger than zeolites. The synthetic approach has the potential to generate new materials with even larger pore sizes, the scientists report in Science.
Iqbal Pittalwala | University of California - River
Researchers demonstrate existence of new form of electronic matter
15.03.2018 | University of Illinois at Urbana-Champaign
Boron can form a purely honeycomb, graphene-like 2-D structure
15.03.2018 | Science China Press
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.
Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...
16.03.2018 | Event News
13.03.2018 | Event News
08.03.2018 | Event News
16.03.2018 | Earth Sciences
16.03.2018 | Physics and Astronomy
16.03.2018 | Life Sciences