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Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2

, 
Nadezhda Sergeevna Smirnova 1
Nadezhda Sergeevna Smirnova
, 
Galina Nikolaevna Baeva 1
Galina Nikolaevna Baeva
,  , 
Andrey Valerievich Bukhtiyarov 2
Andrey Valerievich Bukhtiyarov
, 
Igor Anatolyevich Chetyrin 2
Igor Anatolyevich Chetyrin
,  , 
Aleksandr Yurevich Stakheev 1
Aleksandr Yurevich Stakheev
2 G.K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
10.1016/j.mencom.2023.10.024
Published 2023-10-18
Communication , Volume 33, Issue 6, 812-814
6
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Markov P. V. et al. Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2 // Mendeleev Communications. 2023. Vol. 33. No. 6. pp. 812-814.
GOST all authors (up to 50) Copy
Markov P. V., Smirnova N. S., Baeva G. N., Mashkovsky I. S., Bukhtiyarov A. V., Chetyrin I. A., Zubavichus Y. V., Stakheev A. Y. Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2 // Mendeleev Communications. 2023. Vol. 33. No. 6. pp. 812-814.
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TY - JOUR
DO - 10.1016/j.mencom.2023.10.024
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.024
TI - Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2
T2 - Mendeleev Communications
AU - Markov, Pavel Viktorovich
AU - Smirnova, Nadezhda Sergeevna
AU - Baeva, Galina Nikolaevna
AU - Mashkovsky, Igor' Sergeevich
AU - Bukhtiyarov, Andrey Valerievich
AU - Chetyrin, Igor Anatolyevich
AU - Zubavichus, Yan Vitautasovich
AU - Stakheev, Aleksandr Yurevich
PY - 2023
DA - 2023/10/18
PB - Mendeleev Communications
SP - 812-814
IS - 6
VL - 33
ER -
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@article{2023_Markov,
author = {Pavel Viktorovich Markov and Nadezhda Sergeevna Smirnova and Galina Nikolaevna Baeva and Igor' Sergeevich Mashkovsky and Andrey Valerievich Bukhtiyarov and Igor Anatolyevich Chetyrin and Yan Vitautasovich Zubavichus and Aleksandr Yurevich Stakheev},
title = {Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2},
journal = {Mendeleev Communications},
year = {2023},
volume = {33},
publisher = {Mendeleev Communications},
month = {Oct},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.024},
number = {6},
pages = {812--814},
doi = {10.1016/j.mencom.2023.10.024}
}
MLA
Cite this
MLA Copy
Markov, Pavel Viktorovich, et al. “Single-atom alloy Pd1Ag10/Al2O3 catalyst: Effect of CO-induced Pd surface segregation on the structure and catalytic performance in the hydrogenation of C2H2.” Mendeleev Communications, vol. 33, no. 6, Oct. 2023, pp. 812-814. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.024.

Keywords

adsorption-induced segregation
CO adsorption
DRIFTS
Pd
selective acetylene hydrogenation
single-atom alloy catalyst
XPS.

Abstract

The effective surface concentration of Pd1 sites composed of individual palladium atoms isolated from each other by Ag atoms in the Pd1Ag10/Al2O3 single-atom alloy (SAA) catalyst can be significantly enhanced by the adsorption-induced surface segregation upon a special pretreatment of the catalyst in a CO-containing atmosphere at 200 °C. The catalyst activity towards acetylene hydrogenation gets tripled without sacrificing selectivity for ethylene. The segregated surface of the catalyst is thus preserved under target reaction conditions.

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