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A hollow Mo/HZSM-5 zeolite capsule catalyst: preparation and enhanced catalytic properties in methane dehydroaromatization
Zhu, Pengfei1,2; Yang, Guohui2; Sun, Jian3; Fan, Ronggang4; Zhang, Peipei2; Yoneyama, Yoshiharu2; Tsubaki, Noritatsu2
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
2017-05-14
DOI10.1039/c7ta02345f
Volume5Issue:18Pages:8599-8607
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS KeywordAROMATIZATION ; SELECTIVITY ; DEHYDROGENATION ; ISOPARAFFINS ; MOLYBDENUM ; CRYSTALS ; ABSENCE ; SYNGAS ; OXYGEN
AbstractA 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.
Language英语
WOS IDWOS:000400983400047
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151968
Collection中国科学院大连化学物理研究所
Affiliation1.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
GB/T 7714
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.
APA Zhu, Pengfei.,Yang, Guohui.,Sun, Jian.,Fan, Ronggang.,Zhang, Peipei.,...&Tsubaki, Noritatsu.(2017).A hollow Mo/HZSM-5 zeolite capsule catalyst: preparation and enhanced catalytic properties in methane dehydroaromatization.JOURNAL OF MATERIALS CHEMISTRY A,5(18),8599-8607.
MLA Zhu, Pengfei,et al."A hollow Mo/HZSM-5 zeolite capsule catalyst: preparation and enhanced catalytic properties in methane dehydroaromatization".JOURNAL OF MATERIALS CHEMISTRY A 5.18(2017):8599-8607.
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