N. S. Smirnova, P. V. Markov, G. N. Baeva, A. V. Rassolov, I. S. Mashkovsky, A. V. Bukhtiyarov, I. P. Prosvirin, M. A. Panafidin, Ya. V. Zubavichus, V. I. Bukhtiyarov, A. Yu. Stakheev, “CO-induced segregation as an efficient tool to control the surface composition and catalytic performance of PdAg3/Al2O3 catalyst”, Mendeleev Commun., 2019, Volume 29, Issue 5,Pages 547

This article is cited in 23 papers

Communications

CO-induced segregation as an efficient tool to control the surface composition and catalytic performance of PdAg₃/Al₂O₃ catalyst

N. S. Smirnova^a, P. V. Markov^a, G. N. Baeva^a, A. V. Rassolov^a, I. S. Mashkovsky^a, A. V. Bukhtiyarov^b, I. P. Prosvirin^b, M. A. Panafidin^b, Ya. V. Zubavichus^b, V. I. Bukhtiyarov^b, A. Yu. Stakheev^a

^a N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
^b G.K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: A treatment of PdAg₃/Al₂O₃ catalyst with CO at 250°C enhanced its activity towards the selective C₂H₂ hydrogenation without any noticeable losses of C₂H₄ selectivity. The CO-DRIFTS and XPS data acquired in situ have indicated that the observed effect arises from Pd surface segregation induced by the CO adsorption and partial transformation of isolated surface Pd₁ active sites into Pd₂ dimers. The catalytic performance of PdAg₃/Al₂O₃ was found to be similar or even better as compared to the best reported catalysts.

Language: English

DOI: 10.1016/j.mencom.2019.09.023

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