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Filamentous Carbon Templated SiO2-NiO Aerogel: Structure and Catalytic Properties for Direct Oxidation of Hydrogen Sulfide into Sulfur Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X
Output data Year: 2000, Volume: 70, Number: 1-2, Pages: 83-91 Pages count : 9 DOI: 10.1023/A:1019019317391
Tags Filamentous carbon, Hydrogen sulfide direct oxidation, Silica aerogol, Sol-gel method
Authors Ermakova Marina A. 1 , Ermakov Dmitriy Yu. 1 , Lebedev Max Yu. 1 , Rudina Nina A. 1 , Kuvshinov Gennadiy G. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS

Funding (1)

1 Russian Foundation for Basic Research 99-03-32274

Abstract: Silica aerogels comprising nickel oxide nanoparticles were synthesized with no use of supercritical drying. A high specific surface area (more than 1000 m2/g), mesoporous structure and considerable stability to sintering up to 900 °C are characteristic of these aerogels. The aerogels were synthesized using the sol–gel method. Filamentous carbon was templated by silica, tetraethoxysilane being used for supplying silica. Carbon was burnt later. Analysis of the aerogel structure revealed the presence of silica nanotubes and nanofibers. Aerogel testing for direct oxidation of H2S into S0 demonstrated as high as 60% conversion of hydrogen sulfide at almost 100% selectivity under stoichiometric conditions at the temperature range of 300–350 °C and 73% conversion at 100% selectivity at a considerable excess of oxygen at 160 °C.
Cite: Ermakova M.A. , Ermakov D.Y. , Lebedev M.Y. , Rudina N.A. , Kuvshinov G.G.
Filamentous Carbon Templated SiO2-NiO Aerogel: Structure and Catalytic Properties for Direct Oxidation of Hydrogen Sulfide into Sulfur
Catalysis Letters. 2000. V.70. N1-2. P.83-91. DOI: 10.1023/A:1019019317391 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Apr 4, 2000
Accepted: Sep 11, 2000
Published print: Dec 1, 2000
Identifiers:
publication_identifier.wos_identifier_type WOS:000165179200014
publication_identifier.scopus_identifier_type 2-s2.0-0034323315
publication_identifier.rinz_identifier_type 13345491
publication_identifier.accession_number_identifier_type 2001:3301
publication_identifier.chemical_accession_number_identifier_type 134:105009
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