Preparation of hexaaluminate
2008 (English)Patent (Other (popular science, discussion, etc.))
A method for preparing a hexaaluminate. The method comprises the steps of a) providing a porous template material, wherein pores having a pore size of about 5-200 nm form at least about 50% of the total pore volume; b) impregnating the material with a liquid comprising metal elements corresponding to the elements of said hexaaluminate to provide an impregnated material; c) drying the impregnated material to provide a dried material; d) optionally, repeating at least once step b), using the dried material, and step c); e) calcining the dried material in an inert atmosphere to provide a calcined material; and f) recovering the hexaaluminate by removing template material from the calcined material. A composition obtainable by such a method. A catalyst composition comprising a hexaaluminate, wherein the composition has an average surface area of at least about 9 m2/g after ageing of the composition in a moist high-temperature atmosphere. A supported catalyst comprising such a composition. Use of such a composition as a catalyst in a high-temperature application.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-8653OAI: oai:DiVA.org:kth-8653DiVA: diva2:14032
QS 20152008-06-042008-06-042015-01-21Bibliographically approved