Comparative study of rubidium and cesium as promoters in carbon-supported ruthenium catalysts for ammonia synthesis

被引：26

作者：

Larichev, Yu. V. ^{[1
]}

Shlyapin, D. A. ^{[2
]}

Tsyrul'nikov, P. G. ^{[2
]}

Bukhtiyarov, V. I. ^{[1
,3
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Inst Hydrocarbons Proc, Omsk 644040, Russia

[3] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

CATALYSIS LETTERS | 2008年 / 120卷 / 3-4期

关键词：

ammonia synthesis; ruthenium catalysts; Cs; Rb; promoter-support interaction; XPS; TEM;

D O I：

10.1007/s10562-007-9270-y

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：

Sibunit-supported Ru-catalysts promoted with cesium or rubidium compounds have been comparatively studied with XPS. The cesium promoter interacts both with support and with active component. The absence of the promoter-support interaction in the case of rubidium provides a stronger interaction between promoter and active component compared to the cesium-based catalysts. These differences in the promoter-support and promoter-metal interactions are exhibited when a sequence of ruthenium and alkali introduction are changed.

引用

页码：204 / 209

页数：6

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