Abstract
Palladium nanoparticles deposited on thermally oxidized silicon and on the carbon support Sibunit by the laser electrodispersion method are extremely active in the gas-phase hydrodechlorination of chlorobenzene at 100–200°C. High conversion of chlorobenzene (above 90%) has been achieved with catalysts with an unusually low metal content (from 10−4 to 10−3 wt %). The cyclohexane-to-benzene ratio in the reaction products depends on the process duration, palladium content, and support nature. According to X-ray photoelectron spectroscopy (XPS) data, palladium in the catalysts retains its metallic state over a long time under the reaction conditions. Possible causes of the high catalytic activity (105 mol (mol Pd)−1 h−1) of the palladium nanoparticles and their stability to chlorination are discussed.
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Original Russian Text © E.S. Lokteva, T.N. Rostovshchikova, S.A. Kachevskii, E.V. Golubina, V.V. Smirnov, A.Yu. Stakheev, N.S. Telegina, S.A. Gurevich, V.M. Kozhevin, D.A. Yavsin, 2008, published in Kinetika i Kataliz, 2008, Vol. 49, No. 5, pp. 784–792.
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Lokteva, E.S., Rostovshchikova, T.N., Kachevskii, S.A. et al. High catalytic activity and stability of palladium nanoparticles prepared by the laser electrodispersion method in chlorobenzene hydrodechlorination. Kinet Catal 49, 748–755 (2008). https://doi.org/10.1134/S0023158408050212
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DOI: https://doi.org/10.1134/S0023158408050212