Substrate Size-Selective Catalysis with Zeolite-Encapsulated Gold Nanoparticles (pages 3504–3507)
Anders B. Laursen, Karen T. Højholt, Lars F. Lundegaard, Søren B. Simonsen, Stig Helveg, Ferdi Schüth, Michael Paul, Jan-Dierk Grunwaldt, Søren Kegnæs, Claus H. Christensen and Kresten Egeblad
Article first published online: 9 APR 2010 | DOI: 10.1002/anie.200906977
The Dark Crystal: A hybrid material is reported that is comprised of 1–2 nm sized gold nanoparticles, accessible only through zeolite micropores in a silicalite-1 crystal, as shown by three-dimensional TEM tomography (see picture). Calcination experiments indicate that the embedded nanoparticles are highly stable towards sintering.