Sulfur distribution on the surface of mesoporous nanofibrous carbon

Distribution of sulfur in the mesoporous carbon catalysts for the direct selective oxidation of hydrogen sulfide has been investigated. Granules of carbon nanofibers, produced by catalytic pyrolysis of methane on the heavily loaded nickel and copper–nickel catalysts were used as catalysts. It was es...

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Bibliographic Details
Published in:Carbon (New York) 2003-01, Vol.41 (2), p.295-302
Main Authors: Shinkarev, V.V, Fenelonov, V.B, Kuvshinov, G.G
Format: Article
Language:English
Subjects:
A. Carbon filaments
B. Catalyst, Chemical vapor deposition
C. Adsorption
D. Surface properties
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Summary:Distribution of sulfur in the mesoporous carbon catalysts for the direct selective oxidation of hydrogen sulfide has been investigated. Granules of carbon nanofibers, produced by catalytic pyrolysis of methane on the heavily loaded nickel and copper–nickel catalysts were used as catalysts. It was established that sulfur deposits similar to the adsorbates which actively interact with the adsorbent surface via the typical mechanism of physical adsorption, involving the filling of micropores at low sorption degrees with consequent formation of a single-layered coverage on the rest surface. A method for studying such distribution is proposed.
ISSN:0008-6223
1873-3891
DOI:10.1016/S0008-6223(02)00290-7