ALKALI-INDUCED SIEVING EFFECT IN NI ON SILICA CATALYSTS

被引：10

作者：

MARTIN, GA

PRALIAUD, H

机构：

[1] Institut de Recherches sur la Catalyse, Villeurbanne Cedex, 69626

来源：

CATALYSIS LETTERS | 1991年 / 9卷 / 1-2期

关键词：

ALKALI PROMOTER; POTASSIUM; NI ON SILICA CATALYSTS; DECORATION; SIEVING EFFECT;

D O I：

10.1007/BF00769094

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：

It is suggested that the addition of potassium nitrate to a Ni/SiO2 precursor results, after reduction, in a blocking of nickel particles by a K-containing compound. The potassium film is supposed to act as a molecular sieve: it is permeable to a small molecule (H2) and inhibits the access of large molecules to the nickel.

引用

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页码：151 / 156

页数：6

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