Abstract
Today there is a need for inexpensive and reliable catalysts due to the increasing demand for “green” catalytic processes of high conversion and selectivity. We now report on the performance of palladium nanoparticles supported on various carbon allotropes in the model reaction of cyclohexene hydrogenation. Palladium catalysts supported on pristine and oxidatively functionalized multiwalled carbon nanotubes and activated carbon were synthesized and characterized by transmission electron microscopy, X-ray diffraction, temperature programmed desorption and nitrogen adsorption measurements. Catalyst based on multiwalled carbon nanotube proved to be more active and less prone to deactivation than the activated carbon supported one. This finding could be interpreted on the basis of morphological differences between the supports.
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Acknowledgments
The project was support by the OTKA K73676 and NNF2 85899 Grants and the “TÁMOP-4.2.1/B-09/1/KONV-2010-0005 project—Creating the Centre of Excellence at the University of Szeged” supported by the European Union and co-financed by the European Regional Fund (www.nfu.hu). A. Kukovecz thanks the support of a HAS Janos Bolyai postdoctoral fellowship.
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Puskás, R., Sápi, A., Kukovecz, A. et al. Comparison of Nanoscaled Palladium Catalysts Supported on Various Carbon Allotropes. Top Catal 55, 865–872 (2012). https://doi.org/10.1007/s11244-012-9861-8
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DOI: https://doi.org/10.1007/s11244-012-9861-8