Standard

Three-way catalysis with bimetallic supported Pd-Au catalysts : Gold as a poison and as a promotor. / Ulrich, Viktor; Moroz, Boris; Pyrjaev, Pavel et al.

In: Applied Catalysis B: Environmental, Vol. 282, 119614, 03.2021.

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

Harvard

Ulrich, V, Moroz, B, Pyrjaev, P, Sinev, I, Bukhtiyarov, A, Gerasimov, E, Bukhtiyarov, V, Cuenya, BR & Grünert, W 2021, 'Three-way catalysis with bimetallic supported Pd-Au catalysts: Gold as a poison and as a promotor', Applied Catalysis B: Environmental, vol. 282, 119614. https://doi.org/10.1016/j.apcatb.2020.119614

APA

Ulrich, V., Moroz, B., Pyrjaev, P., Sinev, I., Bukhtiyarov, A., Gerasimov, E., Bukhtiyarov, V., Cuenya, B. R., & Grünert, W. (2021). Three-way catalysis with bimetallic supported Pd-Au catalysts: Gold as a poison and as a promotor. Applied Catalysis B: Environmental, 282, [119614]. https://doi.org/10.1016/j.apcatb.2020.119614

Vancouver

Ulrich V, Moroz B, Pyrjaev P, Sinev I, Bukhtiyarov A, Gerasimov E et al. Three-way catalysis with bimetallic supported Pd-Au catalysts: Gold as a poison and as a promotor. Applied Catalysis B: Environmental. 2021 Mar;282:119614. doi: 10.1016/j.apcatb.2020.119614

Author

Ulrich, Viktor ; Moroz, Boris ; Pyrjaev, Pavel et al. / Three-way catalysis with bimetallic supported Pd-Au catalysts : Gold as a poison and as a promotor. In: Applied Catalysis B: Environmental. 2021 ; Vol. 282.

BibTeX

@article{fdea5d15f2c44de2833940268fbc1f58,
title = "Three-way catalysis with bimetallic supported Pd-Au catalysts: Gold as a poison and as a promotor",
abstract = "Three-way catalysts containing Au and/or Pd supported on either CeZrOx (CZ) or La2O3/Al2O3 (LA) were studied with respect to their performance in a model feed and characterized by various techniques (physisorption, CO chemisorption, TEM, XRD, XPS, XANES). A drastic support influence was found in both catalytic behavior and Pd-Au relation. While Au was a strong poison for all catalytic functions of Pd (oxidation, NO reduction) on LA, poisoning was much mitigated on CZ, rendering all Pd containing catalysts superior to a commercial reference. After ageing, the poisoning by Au was aggravated on LA. On CZ, Pd-rich bimetallic combinations retained better activity than Pd/CZ, which still outperformed the reference. As Au did not significantly contribute to propene oxidation and NO reduction, activity of Pd was markedly increased under a promoting influence of Au. Stabilization of PdII by ceria and delayed Pd-Au alloy formation are key features in the CZ-supported PdAu catalysts.",
keywords = "Ageing, Alloying, Support influence, XANES, XRD, THERMAL-STABILITY, PALLADIUM, OXIDE, DECOMPOSITION, CO OXIDATION, NANOPARTICLES, TEMPERATURE, SURFACE, SOLVENT-FREE OXIDATION, HYDROGEN-PEROXIDE",
author = "Viktor Ulrich and Boris Moroz and Pavel Pyrjaev and Ilya Sinev and Andrey Bukhtiyarov and Evgeny Gerasimov and Valerii Bukhtiyarov and Cuenya, {Beatriz Roldan} and Wolfgang Gr{\"u}nert",
note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2021",
month = mar,
doi = "10.1016/j.apcatb.2020.119614",
language = "English",
volume = "282",
journal = "Applied Catalysis B: Environmental",
issn = "0926-3373",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Three-way catalysis with bimetallic supported Pd-Au catalysts

T2 - Gold as a poison and as a promotor

AU - Ulrich, Viktor

AU - Moroz, Boris

AU - Pyrjaev, Pavel

AU - Sinev, Ilya

AU - Bukhtiyarov, Andrey

AU - Gerasimov, Evgeny

AU - Bukhtiyarov, Valerii

AU - Cuenya, Beatriz Roldan

AU - Grünert, Wolfgang

N1 - Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/3

Y1 - 2021/3

N2 - Three-way catalysts containing Au and/or Pd supported on either CeZrOx (CZ) or La2O3/Al2O3 (LA) were studied with respect to their performance in a model feed and characterized by various techniques (physisorption, CO chemisorption, TEM, XRD, XPS, XANES). A drastic support influence was found in both catalytic behavior and Pd-Au relation. While Au was a strong poison for all catalytic functions of Pd (oxidation, NO reduction) on LA, poisoning was much mitigated on CZ, rendering all Pd containing catalysts superior to a commercial reference. After ageing, the poisoning by Au was aggravated on LA. On CZ, Pd-rich bimetallic combinations retained better activity than Pd/CZ, which still outperformed the reference. As Au did not significantly contribute to propene oxidation and NO reduction, activity of Pd was markedly increased under a promoting influence of Au. Stabilization of PdII by ceria and delayed Pd-Au alloy formation are key features in the CZ-supported PdAu catalysts.

AB - Three-way catalysts containing Au and/or Pd supported on either CeZrOx (CZ) or La2O3/Al2O3 (LA) were studied with respect to their performance in a model feed and characterized by various techniques (physisorption, CO chemisorption, TEM, XRD, XPS, XANES). A drastic support influence was found in both catalytic behavior and Pd-Au relation. While Au was a strong poison for all catalytic functions of Pd (oxidation, NO reduction) on LA, poisoning was much mitigated on CZ, rendering all Pd containing catalysts superior to a commercial reference. After ageing, the poisoning by Au was aggravated on LA. On CZ, Pd-rich bimetallic combinations retained better activity than Pd/CZ, which still outperformed the reference. As Au did not significantly contribute to propene oxidation and NO reduction, activity of Pd was markedly increased under a promoting influence of Au. Stabilization of PdII by ceria and delayed Pd-Au alloy formation are key features in the CZ-supported PdAu catalysts.

KW - Ageing

KW - Alloying

KW - Support influence

KW - XANES

KW - XRD

KW - THERMAL-STABILITY

KW - PALLADIUM

KW - OXIDE

KW - DECOMPOSITION

KW - CO OXIDATION

KW - NANOPARTICLES

KW - TEMPERATURE

KW - SURFACE

KW - SOLVENT-FREE OXIDATION

KW - HYDROGEN-PEROXIDE

UR - http://www.scopus.com/inward/record.url?scp=85092745759&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2020.119614

DO - 10.1016/j.apcatb.2020.119614

M3 - Article

AN - SCOPUS:85092745759

VL - 282

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

M1 - 119614

ER -

ID: 25686201