Abstract
In this work, we consider the effect of carbon supports and methods of preparing Pd/C catalysts on the ability of palladium-containing particles to leach out into solution during the interaction of a catalyst with a solvent. The leaching of palladium particles from the substrate surface into pure solvents was studied by high resolution mass spectrometry. It is shown that the type of leached palladium particles formed in the solution depend not only on the solvent, but also on the method of catalyst preparation and on the nature of the support. It has been found that the use of phosphorus-doped carbon (PC) as a support also results in palladium being leached into solution. In addition, the catalytic activity of the catalysts supported on graphite and PC equally decreased both in the Suzuki–Miyaura reaction and in the Mizoroki–Heck reaction.
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