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Article

Oxido- and Dioxido-Vanadium(V) Complexes Supported on Carbon Materials: Reusable Catalysts for the Oxidation of Cyclohexane

1
Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
2
Laboratory of Catalysis and Materials (LCM), Associate Laboratory LSRE-LCM, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
3
LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Largo da Torre, 2829-516 Caparica, Portugal
4
Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
*
Authors to whom correspondence should be addressed.
Academic Editors: Adelina Ilie and Nikos Tagmatarchis
Nanomaterials 2021, 11(6), 1456; https://doi.org/10.3390/nano11061456
Received: 9 February 2021 / Revised: 17 May 2021 / Accepted: 28 May 2021 / Published: 31 May 2021
(This article belongs to the Special Issue Structure and Properties of Functional Nanomaterials)
Oxidovanadium(V) and dioxidovanadium(V) compounds, [VO(OEt)L] (1) and [Et3NH][VO2L] (2), were synthesized using an aroylhydrazone Schiff base (5-bromo-2-hydroxybenzylidene)-2-hydroxybenzohydrazide (H2L). They were characterized by elemental analysis, Fourier-transform infrared spectroscopy (FT-IR), (1H and 51V) nuclear magnetic resonance (NMR), electrospray ionization mass spectrometry (ESI-MS) and single crystal X-ray diffraction analyses. Both complexes were immobilized on functionalized carbon nanotubes and activated carbon. The catalytic performances of 1 and 2, homogenous and anchored on the supports, were evaluated for the first time towards the MW-assisted peroxidative oxidation (with tert-butylhydroperoxide, TBHP) of cyclohexane under heterogeneous conditions. The immobilization of 1 and 2 on functionalized carbon materials improved the efficiency of catalytic oxidation and allowed the catalyst recyclability with a well-preserved catalytic activity. View Full-Text
Keywords: oxidovanadium(V) complexes; aroylhydrazone; X-ray structure; microwave-assisted oxidation; carbon materials; heterogeneous catalysis oxidovanadium(V) complexes; aroylhydrazone; X-ray structure; microwave-assisted oxidation; carbon materials; heterogeneous catalysis
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MDPI and ACS Style

Sutradhar, M.; Andrade, M.A.; Carabineiro, S.A.C.; Martins, L.M.D.R.S.; Guedes da Silva, M.d.F.C.; Pombeiro, A.J.L. Oxido- and Dioxido-Vanadium(V) Complexes Supported on Carbon Materials: Reusable Catalysts for the Oxidation of Cyclohexane. Nanomaterials 2021, 11, 1456. https://doi.org/10.3390/nano11061456

AMA Style

Sutradhar M, Andrade MA, Carabineiro SAC, Martins LMDRS, Guedes da Silva MdFC, Pombeiro AJL. Oxido- and Dioxido-Vanadium(V) Complexes Supported on Carbon Materials: Reusable Catalysts for the Oxidation of Cyclohexane. Nanomaterials. 2021; 11(6):1456. https://doi.org/10.3390/nano11061456

Chicago/Turabian Style

Sutradhar, Manas, Marta A. Andrade, Sónia A.C. Carabineiro, Luísa M.D.R.S. Martins, Maria d.F.C. Guedes da Silva, and Armando J.L. Pombeiro. 2021. "Oxido- and Dioxido-Vanadium(V) Complexes Supported on Carbon Materials: Reusable Catalysts for the Oxidation of Cyclohexane" Nanomaterials 11, no. 6: 1456. https://doi.org/10.3390/nano11061456

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