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|Type:||Artigo de periódico|
|Title:||Cuapso-34 Catalysts For N2o Decomposition In The Presence Of H2o. A Study Of Zeolitic Structure Stability In Comparison To Cu-sapo-34 And Cu-zsm-5|
|Abstract:||N2O is a strong greenhouse gas with a global warming potential > 270 times that of CO2. Sources of N2O include emissions from cars, trucks, etc. The structural stability at high temperatures of both Cu-exchanged SAPO-34 and CuAPSO-34 with isomorphously substituted copper ions was studied. The CuAPSO-34 showed good activity in N2O decomposition even when the reaction was run in the presence of H2O or after aging treatment under H2O vapor at 600°C for 80 hr which led to a drastic loss of activity of Cu-ZSM-5. Structure dealumination and a reduction of ∼ 70% of the Cu+ ions occurred after aging under water vapor, which could be the cause of the poorer catalytic behavior of Cu-ZSM-5.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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