Carbon deposition on Ni/Al2O3 catalysts doped with small amounts of molybdenum

被引：79

作者：

Kepinski, L

Stasinska, B

Borowiecki, T

机构：

[1] Marie Curie Sklodowska Univ, Fac Chem, Dept Chem Technol, PL-20031 Lublin, Poland

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

来源：

CARBON | 2000年 / 38卷 / 13期

关键词：

carbon filaments; coking; transmission electron microscopy (TEM); microstructure;

D O I：

10.1016/S0008-6223(00)00017-8

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：

High resolution transmission electron microscopy (HRTEM) was used in the study of the structure of carbon deposits obtained on Ni/Al2O3 and Ni-Mo/Al2O3 catalysts during steam reforming of n-butane. The introduction of small amounts of molybdenum compounds (less than or equal to 1 wt% of Mo) into the nickel catalysts greatly improved their resistance to coking. The morphology of carbon is similar on both catalysts. On the Ni-Mo/Al2O3 catalyst much lower numbers of Ni particles were observed that are active in the carbon filaments growth. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1845 / 1856

页数：12

共 34 条

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