Characterization of the effects of phosphorus and calcium on the activity of Rh-containing catalyst powders

被引：12

作者：

Kröger, V

Hietikko, M

Lassi, U

Ahola, J

Kallinen, K

Laitinen, R

Keiski, RL

机构：

[1] Univ Oulu, Dept Proc & Environm Engn, FIN-90014 Oulu, Finland

[2] Univ Oulu, Dept Chem, FIN-90014 Oulu, Finland

[3] Ecocat Oy, Catalyst Res, FIN-90101 Oulu, Finland

来源：

TOPICS IN CATALYSIS | 2004年 / 30-1卷 / 1-4期

关键词：

calcium; phosphorus; poisoning; three-way catalyst;

D O I：

10.1023/B:TOCA.0000029839.80346.ab

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The individual and combined effects of phosphorus and calcium on Rh-containing catalyst powders have been studied. The results showed a strong deactivating impact of phosphorus on the catalytic activity of these powders. The effect of calcium poisoning was not as significant. By contrast, the presence of calcium even restored the activity of the catalyst powders poisoned by phosphorus.

引用

页码：469 / 473

页数：5

共 9 条

[1]

BRETT PS, 1989, SAE TECHNICAL PAPER, P1

[2]

*INT CTR DIFFR, PDF2 POWD DIFFR DAT

[3]

JOY GC, 1985, 852099 SOC AUT ENG, P53

[4] Deactivation of real three way catalysts by CePO4 formation [J].