Abstract
Based on the results obtained using chemical, kinetic, and physical techniques (EPR, IR, and UV spectroscopy; transmission electron microscopy; and XRD analysis), the formation of active species in the triethylaluminum-bis(tris)(acetylacetonato)cobalt system, which is known to be a hydrogenation catalyst, has been considered. It has been found that nanosized particles are formed in this system; the core of these particles consists of Co0 atoms stabilized by a shell containing Et2Al(acac), AlEt3, and their reaction products. The extremal dependence of the hydrogenation activity of the system on the Al/Co ratio is primarily due to changes in the composition of the protective shell of nanosized particles.
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Original Russian Text © L.O. Nindakova, F.K. Shmidt, V.V. Saraev, B.A. Shainyan, N.N. Chipanina, V.A. Umanets, L.N. Belonogova, D.-S.D. Toryashinova, 2006, published in Kinetika i Kataliz, 2006, Vol. 47, No. 1, pp. 59–68.
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Nindakova, L.O., Shmidt, F.K., Saraev, V.V. et al. Formation of a hydrogenation catalyst in the cobalt acetylacetonate-triethylaluminum system. Kinet Catal 47, 54–63 (2006). https://doi.org/10.1134/S0023158406010095
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DOI: https://doi.org/10.1134/S0023158406010095