Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine

Handle URI:
http://hdl.handle.net/10754/594124
Title:
Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine
Authors:
Liu, Yan; Qu, Wei; Chang, Weiwei; Pan, Shuxiang; Tian, Zhijian; Meng, Xiangju; Rigutto, Marcello; Made, Alexander van der; Zhao, Lan; Zheng, Xiaoming; Xiao, Feng Shou
Abstract:
Hierarchically porous SAPO-11 zeolite (H-SAPO-11) is rationally synthesized from a starting silicoaluminophosphate gel in the presence of polyhexamethylene biguanidine as a mesoscale template. The sample is well characterized by XRD, N2 sorption, SEM, TEM, NMR, XPS, NH3-TPD, and TG techniques. The results show that the sample obtained has good crystallinity, hierarchical porosity (mesopores at ca. 10nm and macropores at ca. 50-200nm), high BET surface area (226m2/g), large pore volume (0.25cm3/g), and abundant medium and strong acidic sites (0.36mmol/g). After loading Pt (0.5wt.%) on H-SAPO-11 by using wet impregnation method, catalytic hydroisomerization tests of n-dodecane show that the hierarchical Pt/SAPO-11 zeolite exhibits high conversion of n-dodecane and enhanced selectivity for branched products as well as reduced selectivity for cracking products, compared with conventional Pt/SAPO-11 zeolite. This phenomenon is reasonably attributed to the presence of hierarchical porosity, which is favorable for access of reactants on catalytically active sites. The improvement in catalytic performance in long-chain paraffin hydroisomerization over Pt/SAPO-11-based catalyst is of great importance for its industrial applications in the future. © 2013 Elsevier Inc.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Liu Y, Qu W, Chang W, Pan S, Tian Z, et al. (2014) Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine. Journal of Colloid and Interface Science 418: 193–199. Available: http://dx.doi.org/10.1016/j.jcis.2013.11.065.
Publisher:
Elsevier BV
Journal:
Journal of Colloid and Interface Science
Issue Date:
Mar-2014
DOI:
10.1016/j.jcis.2013.11.065
PubMed ID:
24461835
Type:
Article
ISSN:
0021-9797
Sponsors:
This work was supported by the Natural National Science Foundation of China (21273197 and U1162201), National High-Tech Research & Development Program of China (2013AA065301), and Fundamental Research Funds for the Central Universities (2013XZZX001).
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Yanen
dc.contributor.authorQu, Weien
dc.contributor.authorChang, Weiweien
dc.contributor.authorPan, Shuxiangen
dc.contributor.authorTian, Zhijianen
dc.contributor.authorMeng, Xiangjuen
dc.contributor.authorRigutto, Marcelloen
dc.contributor.authorMade, Alexander van deren
dc.contributor.authorZhao, Lanen
dc.contributor.authorZheng, Xiaomingen
dc.contributor.authorXiao, Feng Shouen
dc.date.accessioned2016-01-19T13:22:08Zen
dc.date.available2016-01-19T13:22:08Zen
dc.date.issued2014-03en
dc.identifier.citationLiu Y, Qu W, Chang W, Pan S, Tian Z, et al. (2014) Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine. Journal of Colloid and Interface Science 418: 193–199. Available: http://dx.doi.org/10.1016/j.jcis.2013.11.065.en
dc.identifier.issn0021-9797en
dc.identifier.pmid24461835en
dc.identifier.doi10.1016/j.jcis.2013.11.065en
dc.identifier.urihttp://hdl.handle.net/10754/594124en
dc.description.abstractHierarchically porous SAPO-11 zeolite (H-SAPO-11) is rationally synthesized from a starting silicoaluminophosphate gel in the presence of polyhexamethylene biguanidine as a mesoscale template. The sample is well characterized by XRD, N2 sorption, SEM, TEM, NMR, XPS, NH3-TPD, and TG techniques. The results show that the sample obtained has good crystallinity, hierarchical porosity (mesopores at ca. 10nm and macropores at ca. 50-200nm), high BET surface area (226m2/g), large pore volume (0.25cm3/g), and abundant medium and strong acidic sites (0.36mmol/g). After loading Pt (0.5wt.%) on H-SAPO-11 by using wet impregnation method, catalytic hydroisomerization tests of n-dodecane show that the hierarchical Pt/SAPO-11 zeolite exhibits high conversion of n-dodecane and enhanced selectivity for branched products as well as reduced selectivity for cracking products, compared with conventional Pt/SAPO-11 zeolite. This phenomenon is reasonably attributed to the presence of hierarchical porosity, which is favorable for access of reactants on catalytically active sites. The improvement in catalytic performance in long-chain paraffin hydroisomerization over Pt/SAPO-11-based catalyst is of great importance for its industrial applications in the future. © 2013 Elsevier Inc.en
dc.description.sponsorshipThis work was supported by the Natural National Science Foundation of China (21273197 and U1162201), National High-Tech Research & Development Program of China (2013AA065301), and Fundamental Research Funds for the Central Universities (2013XZZX001).en
dc.publisherElsevier BVen
dc.subjectHierarchical zeoliteen
dc.subjectHydroisomerizationen
dc.subjectN-Dodecaneen
dc.subjectSAPO-11en
dc.subjectSupported platinum catalysten
dc.titleCatalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidineen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalJournal of Colloid and Interface Scienceen
dc.contributor.institutionKey Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University (XiXi Campus), Hangzhou 310028, Chinaen
dc.contributor.institutionState Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, Chinaen
dc.contributor.institutionShell Technology Centre Amsterdam (STCA), CW-01-07, Grasweg 31, 1031 HW Amsterdam, Chinaen
dc.contributor.institutionDepartment of Chemical Engineering and Technology, East China Institute of Technology, Nanchang 330013, Chinaen
kaust.authorZhao, Lanen

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