Abstract
Nanostructured nickel films deposited by laser electrodispersion onto a silicon (semiconducting) or thermally oxidized silicon (insulating) substrate show a remarkably high catalytic activity (of the order of 103–104 (mol product) (mol Ni)−1 h−1) in the isomerization of chlorinated hydrocarbons and olefin hydrogenation. The special properties of the laser-deposited films are likely due to the small size (2.5 nm), developed surface, and amorphism of the nickel particles, as well as to highly active, charged particles appearing on the insulating substrate. The latter result from thermal fluctuations of electrons between closely spaced particles. In a film deposited on silicon covered with a natural oxide layer, a significant role is also played by charge redistribution between the substrate and metal particles.
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Original Russian Text © S.M. Nevskaya, S.A. Nikolaev, Yu.G. Noskov, T.N. Rostovshchikova, V.V. Smirnov, S.A. Gurevich, M.A. Zabelin, V.M. Kozhevin, P.A. Tret’yakov, D.A. Yavsin, A.Yu. Vasil’kov, 2006, published in Kinetika i Kataliz, 2006, Vol. 47, No. 4, pp. 657–663.
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Nevskaya, S.M., Nikolaev, S.A., Noskov, Y.G. et al. Unusual catalytic properties of nanostructured nickel films obtained by laser electrodispersion. Kinet Catal 47, 638–644 (2006). https://doi.org/10.1134/S0023158406040203
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DOI: https://doi.org/10.1134/S0023158406040203