Journal
JOURNAL OF CATALYSIS
Volume 363, Issue -, Pages 81-91Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2018.02.028
Keywords
Sonogashira; Magnesium oxide; Palladium; Copper; Supported catalyst
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Funding
- Institute for Advanced Studies in Basic Sciences (IASBS) Research Council
- Iran National Science Foundation (INSF) [95844587]
- Spanish Ministerio de Economia y Competitividad (MINECO) [CTQ2013-43446-P, CTQ2014-51912-REDC]
- Spanish Ministerio de Economia, Industria y Competitividad, Agencia Estatal de Investigacion (AEI)
- Fondo Europeo de Desarrollo Regional (FEDER, EU) [CTQ2016-76782-P, CTQ2016-81797-REDC]
- Generalitat Valenciana [PROMETE011/2014/017]
- University of Alicante
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PdCu bimetallic nanoparticles with a diameter of about 3 nm are prepared and supported on a polymeric vinylimidazole ligand modified magnesium oxide. This new material is characterized using different analysis such as XRD, XPS, CHNS, TEM, SEM, and EDX-mapping. PdCu supported on MgO (MgO@PdCu) exhibits high catalytic activity in the Sonogashira coupling reaction of aryl iodides, bromides and chlorides with low Pd loading (0.05-0.2 mol%). This catalyst is recovered and recycled for 11 consecutive runs preserving its catalytic activity in the model reaction of iodobenzene with phenylacetylene for at least 8 cycles. Reused catalyst is characterized with TEM, XPS and EDX showing preservation of the catalyst structure. Using hot filtration and PVP poisoning tests, the catalyst shows a heterogeneous behavior for the model reaction. (C) 2018 Elsevier Inc. All rights reserved.
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