Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization

doi:10.1016/j.jechem.2018.09.009

	Pt supported on Zn modified silicalite-1 zeolite as a catalyst for n-hexane aromatization
	Liu, Guodong 1,2; Liu, Jiaxu 1,2; He, Ning 1,2; Sheng, Shishan 3; Wang, Guiru 1,2; Guo, Hongchen 1,2
刊名	JOURNAL OF ENERGY CHEMISTRY
	2019-07-01
卷号	34 页码:96-103
关键词	Silicalite-1 zeolite Pt-Zn/Silicalite-1 n-Hexane aromatization Sulfur-resistance
ISSN号	2095-4956
DOI	10.1016/j.jechem.2018.09.009
通讯作者	Guo, Hongchen(hongchenguo@dlut.edu.cn)
英文摘要	Platinum (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.
资助项目	National Natural Science Foundation of China[21603023]
WOS关键词	BECKMANN REARRANGEMENT ; ALKANE AROMATIZATION ; PT/KL CATALYSTS ; BETA-ZEOLITES ; ACID SITES ; PLATINUM ; IR ; DEHYDROCYCLIZATION ; NMR ; HYDROGENATION
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000473219600013
资助机构	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 ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/175281]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Guo, Hongchen
作者单位	1.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Liaoning, Peoples R China 2.Dalian Univ Technol, Dept Catalyt Chem & Engn, Dalian 116012, Liaoning, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 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.