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
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