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In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study. / Bukhtiyarov, A. V.; Prosvirin, I. P.; Saraev, A. A. et al.

In: Faraday Discussions, Vol. 208, 01.08.2018, p. 255-268.

Research output: Contribution to journal › Article › peer-review

Harvard

Bukhtiyarov, AV, Prosvirin, IP, Saraev, AA, Klyushin, AY, Knop-Gericke, A & Bukhtiyarov, VI 2018, 'In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study', Faraday Discussions, vol. 208, pp. 255-268. https://doi.org/10.1039/c7fd00219j

APA

Bukhtiyarov, A. V., Prosvirin, I. P., Saraev, A. A., Klyushin, A. Y., Knop-Gericke, A., & Bukhtiyarov, V. I. (2018). In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study. Faraday Discussions, 208, 255-268. https://doi.org/10.1039/c7fd00219j

Vancouver

Bukhtiyarov AV, Prosvirin IP, Saraev AA, Klyushin AY, Knop-Gericke A, Bukhtiyarov VI. In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study. Faraday Discussions. 2018 Aug 1;208:255-268. doi: 10.1039/c7fd00219j

Author

Bukhtiyarov, A. V. ; Prosvirin, I. P. ; Saraev, A. A. et al. / In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study. In: Faraday Discussions. 2018 ; Vol. 208. pp. 255-268.

BibTeX

@article{f8f35d7a22194a9faa1ae8cd8e163f21,
title = "In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study",
abstract = "Model bimetallic Pd-Au/HOPG catalysts have been investigated in the CO oxidation reaction using a combination of NAP XPS and MS techniques. The samples have shown catalytic activity at temperatures above 150 °C. The redistribution of Au and Pd on the surface depending on the reaction conditions has been demonstrated using NAP XPS. The Pd enrichment of the bimetallic particles' surface under reaction gas mixture has been shown. Apparently, CO adsorption induces Pd segregation on the surface. Heating the sample under reaction conditions above 150 °C decomposes the Pd-CO state due to CO desorption and reaction and simultaneous Pd-Au alloy formation on the surface takes place. Cooling back down to RT results in reversible Pd segregation due to Pd-CO formation and the sample becomes inactive. It has been shown that in situ studies are necessary for investigation of the active sites in Pd-Au bimetallic systems.",
keywords = "SURFACE SEGREGATION, ATMOSPHERIC PRESSURES, CATALYTIC-PROPERTIES, ULTRAHIGH-VACUUM, MODEL CATALYSTS, GOLD, ADSORPTION, NANOPARTICLES, NANOALLOYS, AUPD(100)",
author = "Bukhtiyarov, {A. V.} and Prosvirin, {I. P.} and Saraev, {A. A.} and Klyushin, {A. Yu} and A. Knop-Gericke and Bukhtiyarov, {V. I.}",
note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",
year = "2018",
month = aug,
day = "1",
doi = "10.1039/c7fd00219j",
language = "English",
volume = "208",
pages = "255--268",
journal = "Faraday Discussions",
issn = "1364-5498",
publisher = "Royal Society of Chemistry",

}

RIS

TY - JOUR

T1 - In situ formation of the active sites in Pd-Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study

AU - Bukhtiyarov, A. V.

AU - Prosvirin, I. P.

AU - Saraev, A. A.

AU - Klyushin, A. Yu

AU - Knop-Gericke, A.

AU - Bukhtiyarov, V. I.

N1 - Publisher Copyright: © 2018 The Royal Society of Chemistry.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Model bimetallic Pd-Au/HOPG catalysts have been investigated in the CO oxidation reaction using a combination of NAP XPS and MS techniques. The samples have shown catalytic activity at temperatures above 150 °C. The redistribution of Au and Pd on the surface depending on the reaction conditions has been demonstrated using NAP XPS. The Pd enrichment of the bimetallic particles' surface under reaction gas mixture has been shown. Apparently, CO adsorption induces Pd segregation on the surface. Heating the sample under reaction conditions above 150 °C decomposes the Pd-CO state due to CO desorption and reaction and simultaneous Pd-Au alloy formation on the surface takes place. Cooling back down to RT results in reversible Pd segregation due to Pd-CO formation and the sample becomes inactive. It has been shown that in situ studies are necessary for investigation of the active sites in Pd-Au bimetallic systems.

AB - Model bimetallic Pd-Au/HOPG catalysts have been investigated in the CO oxidation reaction using a combination of NAP XPS and MS techniques. The samples have shown catalytic activity at temperatures above 150 °C. The redistribution of Au and Pd on the surface depending on the reaction conditions has been demonstrated using NAP XPS. The Pd enrichment of the bimetallic particles' surface under reaction gas mixture has been shown. Apparently, CO adsorption induces Pd segregation on the surface. Heating the sample under reaction conditions above 150 °C decomposes the Pd-CO state due to CO desorption and reaction and simultaneous Pd-Au alloy formation on the surface takes place. Cooling back down to RT results in reversible Pd segregation due to Pd-CO formation and the sample becomes inactive. It has been shown that in situ studies are necessary for investigation of the active sites in Pd-Au bimetallic systems.

KW - SURFACE SEGREGATION

KW - ATMOSPHERIC PRESSURES

KW - CATALYTIC-PROPERTIES

KW - ULTRAHIGH-VACUUM

KW - MODEL CATALYSTS

KW - GOLD

KW - ADSORPTION

KW - NANOPARTICLES

KW - NANOALLOYS

KW - AUPD(100)

UR - http://www.scopus.com/inward/record.url?scp=85051814440&partnerID=8YFLogxK

U2 - 10.1039/c7fd00219j

DO - 10.1039/c7fd00219j

M3 - Article

AN - SCOPUS:85051814440

VL - 208

SP - 255

EP - 268

JO - Faraday Discussions

JF - Faraday Discussions

SN - 1364-5498

ER -

ID: 16320067