Effect of Framework Charge Density on Catalytic Activity of Copper Loaded Molecular Sieves of Chabazite Structure in Nitrogen(II) Oxide Decomposition

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Title:Effect of Framework Charge Density on Catalytic Activity of Copper Loaded Molecular Sieves of Chabazite Structure in Nitrogen(II) Oxide Decomposition
Creators:
Dědeček, Jiří
Vondrová, Alena
Čejka, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 65, 3, pp. 343-351
Uncontrolled Keywords:ZnAlPO-34, Cu ion, Chabazite, Heterogeneous catalysis, NO decomposition, Molecular sieve, Zeolites

Abstract

NO decomposition over Cu-loaded molecular sieves of chabazite structure with different framework negative charge density was investigated. Cu-ZnAlPO-34 with framework charge density (Al + P)/Zn = 15 exhibited high and stable catalytic activity in NO decomposition while Cu-chabazite with Si/Al = 2.7 was inactive. This evidences that the number of aluminum atoms balancing Cu ions in cationic sites controls the catalytic activity of Cu ion. Ions balanced by single framework aluminum atoms exhibit high activity in NO decomposition while ions balanced by two framework aluminum atoms are inactive. Topology of cationic sites is not the limiting parameter for NO decomposition over Cu ions located in molecular sieves. <p>

Title:Effect of Framework Charge Density on Catalytic Activity of Copper Loaded Molecular Sieves of Chabazite Structure in Nitrogen(II) Oxide Decomposition
Creators:
Dědeček, Jiří
Vondrová, Alena
Čejka, Jiří
Uncontrolled Keywords:ZnAlPO-34, Cu ion, Chabazite, Heterogeneous catalysis, NO decomposition, Molecular sieve, Zeolites
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:65
Number:3
Page Range:pp. 343-351
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20000343UNSPECIFIED
ID Code:1644
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Dědeček, Jiří; Vondrová, Alena; Čejka, Jiří (2000) Effect of Framework Charge Density on Catalytic Activity of Copper Loaded Molecular Sieves of Chabazite Structure in Nitrogen(II) Oxide Decomposition. Collection of Czechoslovak Chemical Communications, 65 (3). pp. 343-351. ISSN 0010-0765

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