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题名: Activity enhancement of Nafion resin: Vapor-phase carbonylation of dimethoxymethane over Nafion-silica composite
作者: Liu, Shiping1, 2;  Zhu, Wenliang1;  Shi, Lei1;  Liu, Hongchao1;  Liu, Yong1;  Ni, Youming1;  Li, Lina1, 2;  Zhou, Hui1, 2;  Xu, Shutao1;  He, Yanli1;  Liu, Zhongmin1
关键词: Dimethoxymethane ;  Carbonylation Ethylene glycol ;  Methyl methoxy acetate ;  Nafion-silica composite
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2015-05-01
DOI: 10.1016/j.apcata.2015.03.010
卷: 497, 页:153-159
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: A kind of composite materials consisting of nano-sized Nafion resin homogeneously dispersed in a high-surface silica matrix was prepared by sol-gel method and used as catalysts in the vapor-phase carbonylation reaction of dimethoxymethane for production of methylmethoxy acetate. These composite catalysts showed much higher catalytic activity in comparison with the original pure Nafion resin catalyst. The remarkable improvement of catalytic performance was due to the increased accessibility of acid sites of Nafion resin in the composite catalysts. The contents of Nafion-H resin and silica precursors were found to have a great influence on the structure of the composite, resulting in different catalytic activity during DMM carbonylation reactions. Furthermore, the comparison of the composite catalysts with high-silica H-Y and H-Beta zeolite catalysts demonstrated that the excellent catalytic performance is closely related to the higher acid strength and larger pores of Nafion-silica composite materials. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: SOLID ACID CATALYSIS ;  SURFACE-AREA ;  STATE NMR ;  ZEOLITES ;  SITES ;  NANOCOMPOSITES ;  FORMALDEHYDE ;  SOLVATION ;  FRAMEWORK ;  STRENGTH
语种: 英语
WOS记录号: WOS:000355052300017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146268
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Shiping,Zhu, Wenliang,Shi, Lei,et al. Activity enhancement of Nafion resin: Vapor-phase carbonylation of dimethoxymethane over Nafion-silica composite[J]. APPLIED CATALYSIS A-GENERAL,2015,497:153-159.
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