DICP OpenIR
Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization
Liu, Guodong1,2; Liu, Jiaxu1,2; He, Ning1,2; Sheng, Shishan3; Wang, Guiru1,2; Guo, Hongchen1,2
Corresponding AuthorGuo, Hongchen(hongchenguo@dlut.edu.cn)
KeywordSilicalite-1 zeolite Pt-Zn/Silicalite-1 n-Hexane aromatization Sulfur-resistance
Source PublicationJOURNAL OF ENERGY CHEMISTRY
2019-07-01
ISSN2095-4956
DOI10.1016/j.jechem.2018.09.009
Volume34Pages:96-103
Funding ProjectNational Natural Science Foundation of China[21603023]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordBECKMANN REARRANGEMENT ; ALKANE AROMATIZATION ; PT/KL CATALYSTS ; BETA-ZEOLITES ; ACID SITES ; PLATINUM ; IR ; DEHYDROCYCLIZATION ; NMR ; HYDROGENATION
AbstractPlatinum (Pt) supported on Zinc (Zn) modified silicalite-1 (S-1) zeolite (denoted as Pt-Zn/S-1) was prepared by using a wetness-impregnation method and applied in the n-hexane aromatization reaction for the first time. Both Lewis and Bronsted acid sites were detected in Pt-Zn/S-1 catalyst by means of FT-IR adsorption of NH3 experiment, which were identified as mostly weak and medium ones. Besides, Pt and Zn species showed strong interaction, as revealed by the TPR (Temperature-programmed reduction) and XPS (X-ray photoelectron spectroscopy) experiments. Pt-Zn/S-1 catalyst exhibited excellent aromatization function rather than isomerization and cracking side reactions in the conversion of n-hexane. Pulse experimental study showed that 75.6% of n-hexane conversion and 76.8% of benzene selectivity were obtained over Pt-0.1 -Zn-6.0/S-1 catalyst at 550 degrees C and under atmospheric pressure. By spectroscopy tests and pulse experimental results, it was concluded that the n-hexane aromatization over Pt-Zn/S-1 catalyst follows a metal-acid bifunctional mechanism. Furthermore, with the assistance of Zn, the electron-deficient Pt species in Pt-Zn/S-1 showed good sulfur tolerance performance. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000473219600013
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/175282
Collection中国科学院大连化学物理研究所
Corresponding AuthorGuo, Hongchen
Affiliation1.Dalian Univ Technol, Dept Catalyt Chem & Engn, Dalian 116012, Liaoning, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Liaoning, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Guodong,Liu, Jiaxu,He, Ning,et al. Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization[J]. JOURNAL OF ENERGY CHEMISTRY,2019,34:96-103.
APA Liu, Guodong,Liu, Jiaxu,He, Ning,Sheng, Shishan,Wang, Guiru,&Guo, Hongchen.(2019).Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization.JOURNAL OF ENERGY CHEMISTRY,34,96-103.
MLA Liu, Guodong,et al."Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization".JOURNAL OF ENERGY CHEMISTRY 34(2019):96-103.
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