Efficient One-Pot Preparation of Cu-SSZ-13 Materials using Cooperative OSDAs for their Catalytic Application in the SCR of NOx

Autor:	Manuel Moliner, Raquel Martínez-Franco, Avelino Corma, Joakim R. Thogersen
Rok vydání:	2013
Předmět:	hydrothermal stability selective catalytic reduction Organic Chemistry Inorganic chemistry chemistry.chemical_element zeolites Selective catalytic reduction Molecular sieve Copper Catalysis Hydrothermal circulation Inorganic Chemistry nitrogen oxides SSZ-13 chemistry.chemical_compound QUIMICA ORGANICA chemistry copper Physical and Theoretical Chemistry Fluoride NOx
Zdroj:	RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname
ISSN:	1867-3880
DOI:	10.1002/cctc.201300141
Popis:	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. This work has been supported by Haldor-Topsoe, the Spanish Government-MINECO (MAT2012-37160), Consolider Ingenio 2010-Multicat, and UPV through PAID-06-11 (n. 1952). M.M. also acknowledges the "Subprograma Ramon y Cajal" for the contract RYC-2011-08972. The Instituto de Tecnologia Quimica thanks the "Program Severo Ochoa" for financial support (SEV 2012 0267). The authors thank Isabel Millet for technical support.
Databáze:	OpenAIRE
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