DICP OpenIR
Interzeolite conversion of zeolite MCM-49 into zeolite ZSM-35 in cyclohexylamine-hexamethyleneimine-Na2O-H2O containing systems
Xie, Sujuan1; Liu, Shenglin1; Gao, Ningning1,2; Li, Xiujie1; Gao, Yang1; Liu, Kefeng3; Xu, Longya1
Source PublicationNEW JOURNAL OF CHEMISTRY
2014-06-01
DOI10.1039/c3nj01532g
Volume38Issue:6Pages:2514-2521
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordMCM-49/ZSM-35 COMPOSITE ZEOLITES ; CUBIC-P-ZEOLITE ; HYDROTHERMAL SYNTHESIS ; TRANSFORMATION ; PRECURSORS ; CRYSTALLIZATION ; FAU ; HEXAMETHYLENEIMINE ; HYDROXYSODALITE ; DISSOLUTION
AbstractThe interzeolite conversion of zeolite MCM-49 into zeolite ZSM-35 in "cyclohexylamine (CHA)-hexamethyleneimine (HMI)-Na2O-H2O" systems, consisting of "CHA-Na2O-H2O", "HMI-Na2O-H2O" and "Na2O-H2O", was investigated in detail using X-ray diffraction (XRD), scanning electron microscopy (SEM), and nuclear magnetic resonance (NMR) characterization techniques. Both CHA and HMI play important roles in directing the interzeolite conversion of MCM-49 into ZSM-35, and the conversion speed is much faster in systems containing CHA than those containing HMI. Even in the Na2O-H2O system without any organic amine, MCM-49 can still transform into some other zeolites with more stable topological structures than itself, such as ZSM-35, ZSM-5, and mordenite, but the product of the interzeolite conversion is more complicated than that in the systems containing organic amines (CHA and/or HMI). In the Na2O-H2O system, alkalinity has been proved to be a crucial factor influencing the conversion trend of MCM-49. Zeolites ZSM-5 and mordenite will appear in the products besides ZSM-35 with the increase of the alkalinity. The conversion process of zeolite MCM-49 in the systems investigated accords well with the solution-mediated transformation mechanism.
Language英语
WOS IDWOS:000336821000047
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/145659
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Petrochina Co Ltd, Petrochem Res Inst, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Xie, Sujuan,Liu, Shenglin,Gao, Ningning,et al. Interzeolite conversion of zeolite MCM-49 into zeolite ZSM-35 in cyclohexylamine-hexamethyleneimine-Na2O-H2O containing systems[J]. NEW JOURNAL OF CHEMISTRY,2014,38(6):2514-2521.
APA Xie, Sujuan.,Liu, Shenglin.,Gao, Ningning.,Li, Xiujie.,Gao, Yang.,...&Xu, Longya.(2014).Interzeolite conversion of zeolite MCM-49 into zeolite ZSM-35 in cyclohexylamine-hexamethyleneimine-Na2O-H2O containing systems.NEW JOURNAL OF CHEMISTRY,38(6),2514-2521.
MLA Xie, Sujuan,et al."Interzeolite conversion of zeolite MCM-49 into zeolite ZSM-35 in cyclohexylamine-hexamethyleneimine-Na2O-H2O containing systems".NEW JOURNAL OF CHEMISTRY 38.6(2014):2514-2521.
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