Abstract
An x-ray photoelectron spectroscopic investigation of supported palladium-containing catalysts based on porous metals (titanium and stainless steel) and a block silica support with honeycomb structure containing 0.5 mass % palladium was carried out for analysis of the composition and valence state of elements in the surface layer of the catalysts. The investigations confirmed the previously proposed mechanism of poisoning of palladium catalysts by sulfur dioxide and also showed that sulfur accumulation is the reason for a decrease of the activity of palladium-containing catalysts during long-term industrial tests in cleaning of natural-gas combustion products.
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Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 28, No. 3, pp. 232–235, May–June, 1992.
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Martsenyuk-Kukharuk, M.G., Orlik, S.N. & Martsenyuk-Kukharuk, A.P. Nature of interactions of sulfur dioxide with palladium catalysts. Theor Exp Chem 28, 188–190 (1993). https://doi.org/10.1007/BF00529416
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DOI: https://doi.org/10.1007/BF00529416