Journal
CHEMCATCHEM
Volume 5, Issue 11, Pages 3316-3323Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201300141
Keywords
copper; hydrothermal stability; nitrogen oxides; selective catalytic reduction; zeolites
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Funding
- Haldor-Topsoe
- Spanish Government-MINECO [MAT2012-37160]
- Consolider Ingenio-Multicat
- UPV [PAID-06-11 (n. 1952)]
- Subprograma Ramon y Cajal [RYC-2011-08972]
- Program Severo Ochoa [SEV 2012 0267]
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The cooperative use of the Cu-tetraethylenepentamine complex and N,N,N-trimethyl-1-adamantammonium as organic structure-directing agents (OSDAs) enabled the rationalized one-pot preparation of Cu-containing SSZ-13 zeolites. A detailed study of different synthetic variables permitted the control of the Si/Al and Cu/(Si+Al) ratios in the final solids. Cu-SSZ-13 molecular sieves synthesized in alkaline media demonstrate excellent catalytic activities and good hydrothermal stabilities for the selective catalytic reduction of NOx. Finally, the effect of synthesis media on the catalytic active sites is also demonstrated and a remarkable activity loss for samples synthesized in fluoride media is observed.
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