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Article: Growth of SAPO-34 in polymer hydrogels through vapor-phase transport

TitleGrowth of SAPO-34 in polymer hydrogels through vapor-phase transport
Authors
KeywordsCrystal size
Polymer hydrogel
SAPO-34
Silicoaluminophosphate (SAPO)
Vapor-phase transport (VPT)
Issue Date2005
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/micromeso
Citation
Microporous And Mesoporous Materials, 2005, v. 85 n. 3, p. 267-272 How to Cite?
AbstractCross-linked polyacrylamide (C-PAM) hydrogels were employed to reduce the crystal size of SAPO-34 molecular sieves in a vapor-phase transport process. A wide size distribution of SAPO-34 crystals, ranging from a few nanometers to 3-5 μm, was produced when the synthesis precursor gels contained the appropriate amount of C-polyacrylamide (C-PAM) hydrogels. Specifically, these dispersions of SAPO-34 crystallites were formed when the molar ratio of polyacrylamide to Al2O3 was between 0.29 and 043. These crystals exhibited a BET surface area of 342-325 m2/g, micropore volume of 0.15-0.12 cm3/g, and TEA entrapment of 9.3-8.0%. Microanalysis using EDXS revealed the presence of residual precursor materials, such as phosphorus, supporting the fact that our samples possessed a lower BET surface area and micropore volume as compared with the SAPO-34 prepared by hydrothermal method in the literature. © 2005 Elsevier Inc. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/69415
ISSN
2015 Impact Factor: 3.349
2015 SCImago Journal Rankings: 1.243
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYao, Jen_HK
dc.contributor.authorWang, Hen_HK
dc.contributor.authorRinger, SPen_HK
dc.contributor.authorChan, KYen_HK
dc.contributor.authorZhang, Len_HK
dc.contributor.authorXu, Nen_HK
dc.date.accessioned2010-09-06T06:13:27Z-
dc.date.available2010-09-06T06:13:27Z-
dc.date.issued2005en_HK
dc.identifier.citationMicroporous And Mesoporous Materials, 2005, v. 85 n. 3, p. 267-272en_HK
dc.identifier.issn1387-1811en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69415-
dc.description.abstractCross-linked polyacrylamide (C-PAM) hydrogels were employed to reduce the crystal size of SAPO-34 molecular sieves in a vapor-phase transport process. A wide size distribution of SAPO-34 crystals, ranging from a few nanometers to 3-5 μm, was produced when the synthesis precursor gels contained the appropriate amount of C-polyacrylamide (C-PAM) hydrogels. Specifically, these dispersions of SAPO-34 crystallites were formed when the molar ratio of polyacrylamide to Al2O3 was between 0.29 and 043. These crystals exhibited a BET surface area of 342-325 m2/g, micropore volume of 0.15-0.12 cm3/g, and TEA entrapment of 9.3-8.0%. Microanalysis using EDXS revealed the presence of residual precursor materials, such as phosphorus, supporting the fact that our samples possessed a lower BET surface area and micropore volume as compared with the SAPO-34 prepared by hydrothermal method in the literature. © 2005 Elsevier Inc. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/micromesoen_HK
dc.relation.ispartofMicroporous and Mesoporous Materialsen_HK
dc.rightsMicroporous and Mesoporous Materials . Copyright © Elsevier BV.en_HK
dc.subjectCrystal sizeen_HK
dc.subjectPolymer hydrogelen_HK
dc.subjectSAPO-34en_HK
dc.subjectSilicoaluminophosphate (SAPO)en_HK
dc.subjectVapor-phase transport (VPT)en_HK
dc.titleGrowth of SAPO-34 in polymer hydrogels through vapor-phase transporten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1387-1811&volume=85&spage=267&epage=272&date=2005&atitle=Growth+of+SAPO-34+in+polymer+hydrogels+through+vapor-phase+transporten_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.micromeso.2005.06.026en_HK
dc.identifier.scopuseid_2-s2.0-26044482223en_HK
dc.identifier.hkuros116500en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-26044482223&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume85en_HK
dc.identifier.issue3en_HK
dc.identifier.spage267en_HK
dc.identifier.epage272en_HK
dc.identifier.isiWOS:000232864200009-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridYao, J=8902683600en_HK
dc.identifier.scopusauthoridWang, H=8393378100en_HK
dc.identifier.scopusauthoridRinger, SP=7006682720en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK
dc.identifier.scopusauthoridZhang, L=10639549900en_HK
dc.identifier.scopusauthoridXu, N=7202694866en_HK

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