Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane

doi:10.1016/j.ijhydene.2019.01.272

	Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane
	Wang, Di 1,2; Zhang, Jie 2; Sun, Jiangbo 2; Gao, Weimin 1; Cui, Yanbin 2
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2019-03-15
卷号	44 期号:14 页码:7205-7215
关键词	Activity Thermocatalytic decomposition Methane Hydrogen Ni-based catalyst Carbon nanofiber
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2019.01.272
英文摘要	Thermocatalytic decomposition of methane is proposed to be an economical and green method to produce COx-free hydrogen and carbon nanomaterial. In present work, 60 wt% Ni/Al2O3 catalysts with different additives (Cu, Mn, Pd, Co, Zn, Fe, Mg) were prepared by co-impregnation method to investigate promotional effects of these metal additives on the activity and stability of 60 wt% Ni/Al2O3 and find out a really effective promoter for decomposition of methane. The catalyst was characterized by N-2 adsorption/desorption, X-ray diffraction, scanning electron microscopy, inductively coupled plasma optical emission spectrometer and hydrogen temperature programmed reduction. While metal additives (5 wt%) were added into 60 wt% Ni/Al2O3, the activity stability of 60 wt% Ni/Al2O3 was improved and the CH4 conversion of 60 wt% Ni/Al2O3 was also improved except Zn addition. Mn addition was found to improve the catalytic activity of 60 wt% Ni/Al2O3 significantly and the CH4 conversion of 5 wt% Mn-60 wt% Ni/Al2O3 was -80%. Cu addition was found to remarkably improve the catalytic stability of 60 wt% Ni/Al2O3 and the CH4 conversion of 5 wt% Cu-60 wt% Ni/Al2O3 decreased from 61% to 45% after 250 min of reaction time. Carbon nanomaterials formed in the thermocatalytic decomposition process were characterized by X-ray diffraction, scanning electron microscopy, thermal gravimetric analyzer and Raman spectroscopy. Carbon deposits consist of amorphous carbon and carbon nanofibers. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
资助项目	Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2017-A-11] ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences[COM2016A003]
WOS关键词	COX-FREE HYDROGEN ; NATURAL-GAS DECOMPOSITION ; SOL-GEL SYNTHESIS ; CARBON NANOTUBES ; SUPPORTED NICKEL ; RAMAN-SCATTERING ; NI-MG ; NANOFIBERS ; FE ; TEMPERATURE
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000462102000016
资助机构	Fund of State Key Laboratory of Multiphase Complex Systems ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28284]
专题	中国科学院过程工程研究所
通讯作者	Gao, Weimin; Cui, Yanbin
作者单位	1.Jiangxi Sci & Technol Normal Univ, Coll Mat & Electromech, Key Lab Mat Surface Engn Jiangxi Prov, Nanchang 330000, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Di,Zhang, Jie,Sun, Jiangbo,et al. Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2019,44(14):7205-7215.
APA	Wang, Di,Zhang, Jie,Sun, Jiangbo,Gao, Weimin,&Cui, Yanbin.(2019).Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,44(14),7205-7215.
MLA	Wang, Di,et al."Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 44.14(2019):7205-7215.