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CTAB modification of MCM-49 zeolite containing HMI and its acylation of anisole
Wei, Huijuan1,2; Xie, Sujuan1; Liu, Kefeng1,3; Xin, Wenjie1; Li, Xiujie1; Liu, Shanhe4; Gu, Shunming4; Liu, Shenglin1; Xu, Longya1
KeywordMcm-49 Zeolite Template Post-treatment Ctab Acylation
Source PublicationCHINESE JOURNAL OF CATALYSIS
2015-10-01
DOI10.1016//S1872-2067(15)60887-7
Volume36Issue:10Pages:1766-1776
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordLAYER STRUCTURE PRESERVATION ; MICRO-MESOPOROUS MATERIALS ; FRIEDEL-CRAFTS ACYLATION ; DIFFERENT PORE SYSTEMS ; CATALYTIC PERFORMANCE ; BETA-ZEOLITE ; LIQUID ALKYLATION ; ACETIC-ANHYDRIDE ; DESILICATION ; ACID
AbstractA series of MCM-49 zeolite catalysts containing different amounts of the hexamethyleneimine (HMI) template were calcined at different temperatures, and then modified with cetyltrimethylammonium bromide (CTAB). Changes in structural and acidic properties were investigated by XRD, N-2 adsorption, NH3-TPD, adsorbed pyridine infrared and DRIFTS measurements, and Si-29 and Al-27, MAS NMR. There were cleaning off of amorphous particles and extraframework Al atoms inserted into the framework of the zeolite due to the CTAB modification. These two effects resulted in more framework Al in the CTAB modified samples than the untreated samples, and a higher Bronsted acid concentration, which was confirmed by the acylation of anisole with acetic anhydride. The catalytic roles of the acid sites located in the different pore systems in the zeolite were investigated. It was verified that the active sites after CTAB modification were mainly in the HMI-free regions. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000362863700016
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146608
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, Liaoning, 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
4.Anhui Costar Biochem Co Ltd, Dangtu 243100, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Wei, Huijuan,Xie, Sujuan,Liu, Kefeng,et al. CTAB modification of MCM-49 zeolite containing HMI and its acylation of anisole[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(10):1766-1776.
APA Wei, Huijuan.,Xie, Sujuan.,Liu, Kefeng.,Xin, Wenjie.,Li, Xiujie.,...&Xu, Longya.(2015).CTAB modification of MCM-49 zeolite containing HMI and its acylation of anisole.CHINESE JOURNAL OF CATALYSIS,36(10),1766-1776.
MLA Wei, Huijuan,et al."CTAB modification of MCM-49 zeolite containing HMI and its acylation of anisole".CHINESE JOURNAL OF CATALYSIS 36.10(2015):1766-1776.
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