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题名: A hollow Mo/HZSM-5 zeolite capsule catalyst: preparation and enhanced catalytic properties in methane dehydroaromatization
作者: Zhu, Pengfei1, 2;  Yang, Guohui2;  Sun, Jian3;  Fan, Ronggang4;  Zhang, Peipei2;  Yoneyama, Yoshiharu2;  Tsubaki, Noritatsu2
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2017-05-14
DOI: 10.1039/c7ta02345f
卷: 5, 期:18, 页:8599-8607
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: A hollow Silicalite-1-HZSM-5 zeolite capsule structure (H-S-Z) embedded with Mo nanoparticles was designed and prepared. The H-S-Z was obtained by a dual-layer hydrothermal synthesis method using activated carbon (AC) as a hard template via self-assembly combined hydrothermal crystallization. One layer of Silicalite-1 zeolite shell was first synthesized on the AC core under neutral-like synthesis conditions. Then, a HZSM-5 zeolite shell was synthesized on this Silicalite-1 zeolite shell enveloping the AC core, followed by calcination in air to remove the core AC. After being loaded with Mo, this hollow zeolite capsule catalyst was tested in a methane dehydroaromatization (MDA) reaction. Compared with the conventional solid catalyst, the Mo/H-S-Z catalyst significantly improved the methane conversion, formation rate of the benzene product, and catalytic stability, and inhibited the carbon deposition, due to the accelerated mass-transfer rate in the hollow structure. Furthermore, the catalyst deactivation derived from the side reactions such as poly-aromatics or coke formation at the inner zeolite could be eliminated.
关键词[WOS]: AROMATIZATION ;  SELECTIVITY ;  DEHYDROGENATION ;  ISOPARAFFINS ;  MOLYBDENUM ;  CRYSTALS ;  ABSENCE ;  SYNGAS ;  OXYGEN
语种: 英语
WOS记录号: WOS:000400983400047
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151968
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.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China
2.Toyama Univ, Sch Engn, Dept Appl Chem, Gofuku 3190, Toyama 9308555, Japan
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China
4.Shinka Co Ltd, Gofuku 3383-4, Toyama 9308555, Japan

Recommended Citation:
Zhu, Pengfei,Yang, Guohui,Sun, Jian,et al. A hollow Mo/HZSM-5 zeolite capsule catalyst: preparation and enhanced catalytic properties in methane dehydroaromatization[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(18):8599-8607.
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