Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study

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Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study. / Bukhtiyarov, A. V.; Panafidin, M. A.; Prosvirin, I. P. et al.
In: Applied surface science, Vol. 604.2022, No. 1 December, 154497, 01.12.2022.

Research output: Contribution to journalArticleResearchpeer-review

Harvard

Bukhtiyarov, AV, Panafidin, MA, Prosvirin, IP, Mashkovsky, IS, Markov, PV, Rassolov, AV, Smirnova, NS, Baeva, GN, Rameshan, C, Rameshan, R, Zubavichus, YV, Bukhtiyarov, VI & Stakheev, AY 2022, 'Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study', Applied surface science, vol. 604.2022, no. 1 December, 154497. https://doi.org/10.1016/j.apsusc.2022.154497

APA

Bukhtiyarov, A. V., Panafidin, M. A., Prosvirin, I. P., Mashkovsky, I. S., Markov, P. V., Rassolov, A. V., Smirnova, N. S., Baeva, G. N., Rameshan, C., Rameshan, R., Zubavichus, Y. V., Bukhtiyarov, V. I., & Stakheev, A. Y. (2022). Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study. Applied surface science, 604.2022(1 December), Article 154497. https://doi.org/10.1016/j.apsusc.2022.154497

Vancouver

Bukhtiyarov AV, Panafidin MA, Prosvirin IP, Mashkovsky IS, Markov PV, Rassolov AV et al. Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study. Applied surface science. 2022 Dec 1;604.2022(1 December):154497. Epub 2022 Aug 10. doi: 10.1016/j.apsusc.2022.154497

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@article{20f1623183784c19a5ac7fb95d53a98c,
title = "Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation: A combined NAP XPS and mass-spectrometry study",
abstract = "Selective hydrogenation (or semi-hydrogenation) of acetylene into ethylene is an important industrial process. The aim of the present work is thus to learn regularities governing the CO-induced segregation and elaborate practical procedures for tuning the surface structure of Pd-Ag nanoparticles to improve their catalytic performance towards the selective hydrogenation of acetylene to ethylene. Utilizing NAP XPS the CO adsorption-induced Pd atoms segregation in supported PdAg2/Al2O3 catalysts already at room temperature has been shown. The surface enrichment with Pd further increases if the treatment temperature is increased up to 250 °C. This specific configuration with a redistributed Pd/Ag surface atomic ratio is appreciably stable and self-sustained even at the absence of CO at moderately elevated temperatures. Nevertheless, a reductive treatment in hydrogen at 450 °C reverts the nanoparticle surface structure to the pristine state. Catalytic properties of this peculiar CO-induced configuration of PdAg2/Al2O3 towards the selective acetylene hydrogenation was investigated using a combination of NAP XPS and MS techniques. The PdAg2/Al2O3 catalyst with the surface enriched with Pd due to the CO-induced segregation manifests improved activity with 100 % selectivity under the conditions used. The results obtained clearly demonstrate that CO adsorption-induced segregation is a powerful tool that can be used to optimize the surface composition and catalytic performance of bimetallic nanoparticles.",
keywords = "Acetylene hydrogenation, CO adsorption-induced segregation, In situ measurements, Near-ambient pressure X-ray photoelectron spectroscopy, Pd-Ag bimetallic catalysts",
author = "Bukhtiyarov, {A. V.} and Panafidin, {M. A.} and Prosvirin, {I. P.} and Mashkovsky, {I. S.} and Markov, {P. V.} and Rassolov, {A. V.} and Smirnova, {N. S.} and Baeva, {G. N.} and Christoph Rameshan and Raffael Rameshan and Zubavichus, {Y. V.} and Bukhtiyarov, {V. I.} and Stakheev, {A. Yu}",
note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",
year = "2022",
month = dec,
day = "1",
doi = "10.1016/j.apsusc.2022.154497",
language = "English",
volume = "604.2022",
journal = "Applied surface science",
issn = "0169-4332",
publisher = "Elsevier",
number = "1 December",

}

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TY - JOUR

T1 - Boosting the activity of PdAg2/Al2O3 supported catalysts towards the selective acetylene hydrogenation by means of CO-induced segregation

T2 - A combined NAP XPS and mass-spectrometry study

AU - Bukhtiyarov, A. V.

AU - Panafidin, M. A.

AU - Prosvirin, I. P.

AU - Mashkovsky, I. S.

AU - Markov, P. V.

AU - Rassolov, A. V.

AU - Smirnova, N. S.

AU - Baeva, G. N.

AU - Rameshan, Christoph

AU - Rameshan, Raffael

AU - Zubavichus, Y. V.

AU - Bukhtiyarov, V. I.

AU - Stakheev, A. Yu

N1 - Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/12/1

Y1 - 2022/12/1

N2 - Selective hydrogenation (or semi-hydrogenation) of acetylene into ethylene is an important industrial process. The aim of the present work is thus to learn regularities governing the CO-induced segregation and elaborate practical procedures for tuning the surface structure of Pd-Ag nanoparticles to improve their catalytic performance towards the selective hydrogenation of acetylene to ethylene. Utilizing NAP XPS the CO adsorption-induced Pd atoms segregation in supported PdAg2/Al2O3 catalysts already at room temperature has been shown. The surface enrichment with Pd further increases if the treatment temperature is increased up to 250 °C. This specific configuration with a redistributed Pd/Ag surface atomic ratio is appreciably stable and self-sustained even at the absence of CO at moderately elevated temperatures. Nevertheless, a reductive treatment in hydrogen at 450 °C reverts the nanoparticle surface structure to the pristine state. Catalytic properties of this peculiar CO-induced configuration of PdAg2/Al2O3 towards the selective acetylene hydrogenation was investigated using a combination of NAP XPS and MS techniques. The PdAg2/Al2O3 catalyst with the surface enriched with Pd due to the CO-induced segregation manifests improved activity with 100 % selectivity under the conditions used. The results obtained clearly demonstrate that CO adsorption-induced segregation is a powerful tool that can be used to optimize the surface composition and catalytic performance of bimetallic nanoparticles.

AB - Selective hydrogenation (or semi-hydrogenation) of acetylene into ethylene is an important industrial process. The aim of the present work is thus to learn regularities governing the CO-induced segregation and elaborate practical procedures for tuning the surface structure of Pd-Ag nanoparticles to improve their catalytic performance towards the selective hydrogenation of acetylene to ethylene. Utilizing NAP XPS the CO adsorption-induced Pd atoms segregation in supported PdAg2/Al2O3 catalysts already at room temperature has been shown. The surface enrichment with Pd further increases if the treatment temperature is increased up to 250 °C. This specific configuration with a redistributed Pd/Ag surface atomic ratio is appreciably stable and self-sustained even at the absence of CO at moderately elevated temperatures. Nevertheless, a reductive treatment in hydrogen at 450 °C reverts the nanoparticle surface structure to the pristine state. Catalytic properties of this peculiar CO-induced configuration of PdAg2/Al2O3 towards the selective acetylene hydrogenation was investigated using a combination of NAP XPS and MS techniques. The PdAg2/Al2O3 catalyst with the surface enriched with Pd due to the CO-induced segregation manifests improved activity with 100 % selectivity under the conditions used. The results obtained clearly demonstrate that CO adsorption-induced segregation is a powerful tool that can be used to optimize the surface composition and catalytic performance of bimetallic nanoparticles.

KW - Acetylene hydrogenation

KW - CO adsorption-induced segregation

KW - In situ measurements

KW - Near-ambient pressure X-ray photoelectron spectroscopy

KW - Pd-Ag bimetallic catalysts

UR - http://www.scopus.com/inward/record.url?scp=85135793038&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2022.154497

DO - 10.1016/j.apsusc.2022.154497

M3 - Article

AN - SCOPUS:85135793038

VL - 604.2022

JO - Applied surface science

JF - Applied surface science

SN - 0169-4332

IS - 1 December

M1 - 154497

ER -