Abstract
The use of unconventional methods for the preparation of Nanosized catalysts for the selective hydrogenation of acetylene and its homologs is considered. Based on published data and experimental data obtained in this work, it is shown that catalysts based on nanoparticles of palladium have a high activity, although their selectivity and stability are low. Bimetallic palladium-containing systems are more promising. The most interesting of them are nanocomposites containing palladium and silver or palladium and zinc particles. Another method that makes it possible to increase the selectivity and stability of the catalysts for the hydrogenation of triple bonds is the use of synergism in gold-nickel nanocomposites. The preparation of nanosized hydrogenation catalysts by a recently developed method of laser electrodispersion is considered. This method makes it possible to prepare catalysts with a very narrow distribution of nanoclusters over sizes and with very high specific activity and stability.
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