The effect of temperature on the pulsed current processing behaviour and structural characteristics of porous ZSM-5 and zeolite Y monoliths
2010 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, Vol. 30, no 14, 2977-2983 p.Article in journal (Refereed) Published
Hierachically porous monoliths of ZSM-5 and Y zeolites have been prepared by pulsed current processing (PCP). The densification behaviour andstructural characteristics during rapid thermal treatment of the zeolites have been determined and related to the influence of the Si:Al ratio on thethermal stability of the zeolites. Monoliths of macroscopic shape can be prepared with an insignificant loss of surface area and micropore volumewhen the PCP-treatment was performed at temperatures below a critical maximum PCP temperature (TPCP). Full-profile fittings of the powderX-ray diffraction patterns showed that the lattice strain of zeolite Y increases rapidly above the critical TPCP while the ZSM-5 zeolites undergo aphase transition from orthorhombic to monoclinic. The use of a novel ceramic processing route for the production of the zeolite monoliths that donot significantly influence the structural characteristics and surface area of the starting materials has a potential to be of importance in catalysisand gas separation applications.
Place, publisher, year, edition, pages
2010. Vol. 30, no 14, 2977-2983 p.
Pulsed current processing; Porosity; X-ray methods
Research subject Materials Chemistry
IdentifiersURN: urn:nbn:se:su:diva-46202DOI: 10.1016/j.jeurceramsoc.2010.02.007OAI: oai:DiVA.org:su-46202DiVA: diva2:372055
ProjectsBerzelii centre EXSELENT
FunderSwedish Research Council