Sulfur distribution on the surface of mesoporous nanofibrous carbon

被引：25

作者：

Shinkarev, VV ^{[1
]}

Fenelonov, V ^{[1
]}

Kuvshinov, GG ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

CARBON | 2003年 / 41卷 / 02期

关键词：

carbon filaments; catalyst; chemical vapor deposition; adsorption; surface properties;

D O I：

10.1016/S0008-6223(02)00290-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：295 / 302

页数：8

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