ON THE PREPARATION AND PROPERTIES OF CUZSM-5 CATALYSTS FOR NO DECOMPOSITION

Authors
Citation
J. Valyon et Wk. Hall, ON THE PREPARATION AND PROPERTIES OF CUZSM-5 CATALYSTS FOR NO DECOMPOSITION, Catalysis letters, 19(2-3), 1993, pp. 109-119
Citations number
30
Categorie Soggetti
Chemistry Physical
Journal title
ISSN journal
1011372X
Volume
19
Issue
2-3
Year of publication
1993
Pages
109 - 119
Database
ISI
SICI code
1011-372X(1993)19:2-3<109:OTPAPO>2.0.ZU;2-5
Abstract
Equilibrium exchange isotherms were determined for the exchange of Cu2 + with NaZSM-5 at varying Cu(Ac)2 concentrations in solutions of const ant volume and zeolite weight. At low Cu2+ levels the solid scavenged all the copper ions. When copper could be detected in the equilibrated solutions, ''overexchange'' was observed. The extent of ''overexchang e'' was higher at pH almost-equal-to 6 than at pH almost-equal-to 4. T hese results were analyzed in relation to catalytic activity.