Catalytic activity of Cu ion-exchanged metalloaluminophosphates in NO decomposition

被引：5

作者：

Dedecek, J ^{[1
]}

Vondrova, A ^{[1
]}

Cejka, J ^{[1
]}

机构：

[1] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem & Electrochem, CR-18223 Prague 8, Czech Republic

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 1998年 / 63卷 / 11期

关键词：

heterogeneous catalysis; NO decomposition; Cu ion-exchanged molecular sieves; AlPO-5; AlPO-11; zeolites;

D O I：

10.1135/cccc19981755

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

NO decomposition was investigated over Cu ion-exchanged aluminophosphate molecular sieve catalysts. Cu ions in cationic positions balanced by one framework negative charge in the metalloaluminophosphates of AlPO-5 and AlPO-11 structures exhibited catalytic activity in NO decomposition comparable with that of Cu-ZSM-5. No catalytic activity of the Cu ions incorporated during syn thesis of molecular sieves into the framework in tetrahedral positions (CuAlPO-11) was observed. The catalytic activity of Cu-MeAlPO-5 and Cu-MeAlPO-11 was observed with various divalent metal ions of the MeAlPO-5 and MeAlPO-11 frameworks (Me = Zn, Mg, Fe, Co) and also with Cu exchanged SAPO-5 molecular sieves. The Cu-MeAlPO-5 and Cu-MeAlPO-11 catalysts differed only in the temperature of the maximum observed catalytic activity.

引用

页码：1755 / 1768

页数：14

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