Journal
TOPICS IN CATALYSIS
Volume 22, Issue 1-2, Pages 53-57Publisher
KLUWER ACADEMIC/PLENUM PUBL
DOI: 10.1023/A:1021411628121
Keywords
Cu-SAPO-34; Cu-ZSM-5; N2O decomposition; CuAPSO-34
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The structural stability at high temperatures of both Cu-exchanged SAPO-34 and CuAPSO-34 with isomorphously substituted copper ions has been investigated. SAPO-34 undergoes an extensive crystallinity loss upon copper ion exchange. The CuAPSO-34 framework showed good hydrothermal stability, as reflected in its surface area and X-ray diffraction pattern after ageing treatments. This catalyst exhibited good activity in N2O decomposition even when the reaction was run in the presence of H2O or after ageing treatment under H2O vapor at 600degreesC for 80 h which, conversely, led to a drastic loss of activity of Cu-ZSM-5.
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