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Effect of metal additives on the catalytic performance of Ni/Al2O3 catalyst in thermocatalytic decomposition of methane
Wang, Di1,2; Zhang, Jie2; Sun, Jiangbo2; Gao, Weimin1; Cui, Yanbin2
2019-03-15
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume44Issue:14Pages:7205-7215
AbstractThermocatalytic 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.
KeywordActivity Thermocatalytic decomposition Methane Hydrogen Ni-based catalyst Carbon nanofiber
DOI10.1016/j.ijhydene.2019.01.272
Language英语
WOS KeywordCOX-FREE HYDROGEN ; NATURAL-GAS DECOMPOSITION ; SOL-GEL SYNTHESIS ; CARBON NANOTUBES ; SUPPORTED NICKEL ; RAMAN-SCATTERING ; NI-MG ; NANOFIBERS ; FE ; TEMPERATURE
Funding ProjectFund 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 Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding OrganizationFund of State Key Laboratory of Multiphase Complex Systems ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences
WOS IDWOS:000462102000016
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28284
Collection中国科学院过程工程研究所
Corresponding AuthorGao, Weimin; Cui, Yanbin
Affiliation1.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
Recommended Citation
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.
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