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dc.contributor.authorYang, Dongjiang
dc.contributor.authorXu, Yao
dc.contributor.authorWu, Dong
dc.contributor.authorSun, Yuhan
dc.date.accessioned2017-05-03T14:55:06Z
dc.date.available2017-05-03T14:55:06Z
dc.date.issued2008
dc.date.modified2011-08-12T06:20:54Z
dc.identifier.issn00224596
dc.identifier.doi10.1016/j.jssc.2008.05.046
dc.identifier.urihttp://hdl.handle.net/10072/39945
dc.description.abstracting tetraethylorthosilicate (TEOS), polymethylhydrosiloxane (PMHS) and aluminium isopropoxide (AIP) as the reactants, through a one-step nonsurfactant route based on PMHS-TEOS-AIP co-polycondensation, hydrothermally stable mesoporous aluminosilicates with different Si/Al molar ratios were successfully prepared. All samples exclusively showed narrow pore size distribution centered at 3.6 nm. To assess the hydrothermal stability, samples were subjected to 100 àdistilled water for 300 h. The boiled mesoporous aluminosilicates have nearly the same N2 adsorption-desorption isotherms and the same pore size distributions as those newly synthesized ones, indicating excellent hydrothermal stability. The 29Si MAS NMR spectra confirmed that PMHS and TEOS have jointly condensed and CH3 groups have been introduced into the materials. The 27Al MAS NMR spectra indicated that Al atoms have been incorporated in the mesopore frameworks. The NH3 temperature-programmed desorption showed strong acidity. Due to the existence of large amount of CH3 groups, the mesoporous aluminosilicates obtained good hydrophobicity. Owing to the relatively large pore and the strong acidity provided by the uniform four-coordinated Al atoms, the excellent catalytic performance for 1,3,5-triisopropylbenzene cracking was acquired easily. The materials may be a profitable complement for the synthesis of solid acid catalysts.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAcademic Press
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom2401
dc.relation.ispartofpageto2405
dc.relation.ispartofissue9
dc.relation.ispartofjournalJournal of Solid State Chemistry
dc.relation.ispartofvolume181
dc.rights.retentionY
dc.subject.fieldofresearchMacromolecular and Materials Chemistry not elsewhere classified
dc.subject.fieldofresearchInorganic Chemistry
dc.subject.fieldofresearchMacromolecular and Materials Chemistry
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchcode030399
dc.subject.fieldofresearchcode0302
dc.subject.fieldofresearchcode0303
dc.subject.fieldofresearchcode0306
dc.titleOne-step synthesis of hydrothermally stable mesoporous aluminosilicates with strong acidity
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2008
gro.hasfulltextNo Full Text
gro.griffith.authorYang, Dongjiang


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