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Niobia-Supported Nanoscaled Bulk-NiO Catalysts for the Ammoxidation of Ethane into Acetonitrile

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Abstract

Two series of supported nanoscaled NiO catalysts have been prepared using Nb2O5 supports with different surface areas. NiO nanoparticles interacting with Ni–O–Nb mixed phases are active and selective for ethane ammoxidation; both are required in order to have an active and selective catalyst. In this paper we report the dispersion of NiO nanoparticles on two Nb2O5 supports in order to generate an active phase for ethane ammoxidation. The use of a support stabilizes NiO nanoparticles, which otherwise would sinter. This work shows how the activity can be modulated by the size of the NiO nanoparticles and by the NiO/Ni–Nb–O ratio, which depends on the nickel coverage and support surface area. The catalysts obtained are very promising for ethane ammoxidation reaction.

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Acknowledgments

The Ministry of Science and Innovation (Spain) funded this study under project CTQ2011-25517. E. Rojas thanks (Mexico) and ICyTDF (Mexico) for her PhD program fellowship. We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities (Spanish CRG X-ray beamline, Grenoble, France), and also to German Castro and Ivan da Silva, Spline staff members, for their help in XANES measurements. The authors thank R. López-Medina for his help with catalytic tests. The authors thank CBMM, Brazil, for providing the hydrated pentoxide sample.

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Authors and Affiliations

  1. Catalytic Spectroscopy Laboratory, Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, 28049, Madrid, Spain

    Elizabeth Rojas & Miguel A. Bañares

  2. Departamento de Ingeniería Química, Universidad de Málaga, 29071, Málaga, Spain

    M. Olga Guerrero-Pérez

Authors
  1. Elizabeth Rojas
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  2. M. Olga Guerrero-Pérez
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  3. Miguel A. Bañares
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Correspondence to M. Olga Guerrero-Pérez.

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Rojas, E., Guerrero-Pérez, M.O. & Bañares, M.A. Niobia-Supported Nanoscaled Bulk-NiO Catalysts for the Ammoxidation of Ethane into Acetonitrile. Catal Lett 143, 31–42 (2013). https://doi.org/10.1007/s10562-012-0937-7

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  • DOI: https://doi.org/10.1007/s10562-012-0937-7

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