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New Nickel Catalysts for the Formation of Filamentous Carbon in the Reaction of Methane Decomposition Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694
Output data Year: 1999, Volume: 187, Number: 1, Pages: 77-84 Pages count : 8 DOI: 10.1006/jcat.1999.2562
Tags Impregnation of porous oxide, Nickel catalysts for methane decomposition, Textural promoters, Yield of filamentous carbon per gram of nickel
Authors Ermakova M.A. 1 , Ermakov D.Yu. 1 , Kuvshinov G.G. 1 , Plyasova L.M. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS

Abstract: A method for intentional synthesis of metal catalysts, specifically nickel catalysts for methane decomposition, was developed. The method was based on impregnation of a porous metal oxide with the precursor of a textural promoter followed by reduction of the latter. The desired texture of NiO was provided by precalcining it at a certain temperature within the range 300 to 900°C. A family of nickel-based catalytic systems with various concentrations of the active component, metal particle sizes, and stability to deactivation in the course of synthesis of filamentous carbon was prepared. The yield of carbon and mechanical strength of carbon particles growing on the catalyst during methane decomposition were found to increase with the concentration of nickel in the catalyst, to reach their maxima at 90–96% nickel. The highest yield of carbon (375–384 g carbon per g nickel) was observed for the catalyst with particles of 10–40 nm average diameter. The effect of textural promoters (SiO2, Al2O3, MgO, TiO2, and ZrO2) on the catalyst performance was studied; the highest carbon yield was obtained with SiO2.
Cite: Ermakova M.A. , Ermakov D.Y. , Kuvshinov G.G. , Plyasova L.M.
New Nickel Catalysts for the Formation of Filamentous Carbon in the Reaction of Methane Decomposition
Journal of Catalysis. 1999. V.187. N1. P.77-84. DOI: 10.1006/jcat.1999.2562 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Jan 22, 1999
Accepted: May 6, 1999
Published print: Oct 1, 1999
Published online: May 25, 2002
Identifiers:
publication_identifier.wos_identifier_type WOS:000083018400008
publication_identifier.scopus_identifier_type 2-s2.0-0033216045
publication_identifier.rinz_identifier_type 13317050
publication_identifier.accession_number_identifier_type 1999:592275
publication_identifier.chemical_accession_number_identifier_type 131:314525
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