Sentences with phrase «zeolite framework»
«The developed zeolite is one of the few examples of a catalyst with well - defined active sites evenly distributed in the zeolite framework — a truly single - site heterogeneous catalyst,» says Professor Johannes Lercher.
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Heating up the silver ions in the zeolite framework makes them adopt this shape.
Not exact matches
Professor Hofkens and his team from the Molecular Imaging and Photonics Unit have now found a way to keep the silver clusters apart by inserting them into the porous framework of zeolites.
A few kilometres away in Sion, high in the Swiss Alps, computational chemist Berend Smit has set up another EPFL centre that develops algorithms for predicting hundreds of thousands of nanoporous zeolites and metal — organic frameworks.
The latter focuses on zeolites and metal — organic frameworks: sponge - like materials with regularly repeating holes in their crystal structures that can trap gas molecules and could be used to store methane or carbon dioxide.
Lithographically patterned Pd nanowires were simply overcoated with a Zn - based zeolite imidazole framework (ZIF - 8) layer composed of Zn ions and organic ligands.
«This places the new material in the exclusive class of porous, high surface area materials including mesoporous silica, zeolites, metal organic frameworks, and carbon nanotubes,» says Strømme.
Lead author Dr Oliver Fenwick from QMUL's School of Engineering and Materials Science, said: «We've shown that silver atoms can be assembled in the porous framework of minerals known as zeolites with a level of control not reported previously.
A present - day hybrid QM / MM model of hydrocarbon chemistry in a zeolite catalyst framework (images adapted from Zimmerman P.M et al.).