Journal
CHEMICAL ENGINEERING JOURNAL
Volume 195, Issue -, Pages 180-187Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.04.091
Keywords
Metal-organic framework; Cu-3(BTC)(2); Carbon monoxide oxidation; CuO-CeO2; Nanoparticle synthesis; Monolith
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Funding
- CONICET from the Argentine government
- ANPCyT from Universidad Nacional del Litoral
- Spanish Ministry of Science and Innovation [MAT2010-15870]
- FPU Program
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The oxidation of carbon monoxide using the metal organic framework (MOF) HKUST-1 is studied. Catalytic results and characterizations by XRD, TEM, H-2-TPR, SEM and LRS show that HKUST-1 itself is not effective in CO oxidation, but is activated in the reaction atmosphere segregating active 5-15 nm CuO particles upon the collapse of the MOF structure. Furthermore, the microporous structure of HKUST-1 is effective to disperse Ce precursors which, upon activation, allow the synthesis of a mixture of CuO and CeO2 nanoparticles in intimate contact. These nanoparticles present a very high activity in CO oxidation. It is shown that this synthesis route employing HKUST-1 as a matrix is useful to immobilize CuO-Ce2O nanoparticles in a monolithic reactor, while keeping a high catalytic activity. (c) 2012 Elsevier B.V. All rights reserved.
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