Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method

Katarzyna Adamska; Szymon Smykała; Sebastian Zieliński; Damian Szymański; Agnieszka Hojeńska; Paweł Stelmachowski; Andrzej Kotarba; Janina Okal

doi:10.1007/s11144-021-02048-y

Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method

Katarzyna Adamska
, Szymon Smykała
, Sebastian Zieliński
, Damian Szymański
, Agnieszka Hojeńska
, Paweł Stelmachowski
, Andrzej Kotarba
, Janina Okal

Doctoral School (SD)

Polish Academy of Sciences
Jagiellonian University in Kraków

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

3 Citations (Scopus)

Abstract

The oxidation of soot over RuRe bimetallic nanoparticles (NPs) supported on γ-Al₂O₃ has been investigated. The catalysts were synthesized by a microwave-polyol method and characterized by ICP, BET, TEM, STEM-EDS, XRD and XPS techniques. The study revealed that the proper choice of the Re loading (0.4–2.0 wt%) is crucial for the catalytic behavior of the 2% Ru–Re/Al₂O₃ nano-catalysts.The best catalytic properties, in terms of overall activity and stability, were observed for the 2%Ru-0.8%Re/γ-Al₂O₃ nano-catalyst. The stability of all bimetallic 2% Ru–Re nano-catalysts in catalytic soot oxidation in the presence of oxygen is very high in contrast to the 2% Ru/γ-Al₂O₃ sample. The presence of rhenium in the catalytic system hinder the formation of large RuO₂ agglomerates leading to a better dispersion of active ruthenium phase and a better catalytic performance. The relationship between the catalytic activity of Ru–Re/γ-Al₂O₃ and the synergetic roles of Ru and Re is discussed.

Original language	English
Pages (from-to)	221-242
Number of pages	22
Journal	Reaction Kinetics, Mechanisms and Catalysis
Volume	134
Issue number	1
DOIs	https://doi.org/10.1007/s11144-021-02048-y
Publication status	Published - Oct 2021

Keywords

Bimetallic catalysts
High stability
RuRe nano-catalysts
Soot oxidation

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

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10.1007/s11144-021-02048-y

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title = "Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method",

abstract = "The oxidation of soot over RuRe bimetallic nanoparticles (NPs) supported on γ-Al2O3 has been investigated. The catalysts were synthesized by a microwave-polyol method and characterized by ICP, BET, TEM, STEM-EDS, XRD and XPS techniques. The study revealed that the proper choice of the Re loading (0.4–2.0 wt\%) is crucial for the catalytic behavior of the 2\% Ru–Re/Al2O3 nano-catalysts.The best catalytic properties, in terms of overall activity and stability, were observed for the 2\%Ru-0.8\%Re/γ-Al2O3 nano-catalyst. The stability of all bimetallic 2\% Ru–Re nano-catalysts in catalytic soot oxidation in the presence of oxygen is very high in contrast to the 2\% Ru/γ-Al2O3 sample. The presence of rhenium in the catalytic system hinder the formation of large RuO2 agglomerates leading to a better dispersion of active ruthenium phase and a better catalytic performance. The relationship between the catalytic activity of Ru–Re/γ-Al2O3 and the synergetic roles of Ru and Re is discussed.",

keywords = "Bimetallic catalysts, High stability, RuRe nano-catalysts, Soot oxidation",

author = "Katarzyna Adamska and Szymon Smyka{\l}a and Sebastian Zieli{\'n}ski and Damian Szyma{\'n}ski and Agnieszka Hoje{\'n}ska and Pawe{\l} Stelmachowski and Andrzej Kotarba and Janina Okal",

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year = "2021",

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doi = "10.1007/s11144-021-02048-y",

language = "English",

volume = "134",

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T1 - Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method

AU - Adamska, Katarzyna

AU - Smykała, Szymon

AU - Zieliński, Sebastian

AU - Szymański, Damian

AU - Hojeńska, Agnieszka

AU - Stelmachowski, Paweł

AU - Kotarba, Andrzej

AU - Okal, Janina

PY - 2021/10

Y1 - 2021/10

N2 - The oxidation of soot over RuRe bimetallic nanoparticles (NPs) supported on γ-Al2O3 has been investigated. The catalysts were synthesized by a microwave-polyol method and characterized by ICP, BET, TEM, STEM-EDS, XRD and XPS techniques. The study revealed that the proper choice of the Re loading (0.4–2.0 wt%) is crucial for the catalytic behavior of the 2% Ru–Re/Al2O3 nano-catalysts.The best catalytic properties, in terms of overall activity and stability, were observed for the 2%Ru-0.8%Re/γ-Al2O3 nano-catalyst. The stability of all bimetallic 2% Ru–Re nano-catalysts in catalytic soot oxidation in the presence of oxygen is very high in contrast to the 2% Ru/γ-Al2O3 sample. The presence of rhenium in the catalytic system hinder the formation of large RuO2 agglomerates leading to a better dispersion of active ruthenium phase and a better catalytic performance. The relationship between the catalytic activity of Ru–Re/γ-Al2O3 and the synergetic roles of Ru and Re is discussed.

AB - The oxidation of soot over RuRe bimetallic nanoparticles (NPs) supported on γ-Al2O3 has been investigated. The catalysts were synthesized by a microwave-polyol method and characterized by ICP, BET, TEM, STEM-EDS, XRD and XPS techniques. The study revealed that the proper choice of the Re loading (0.4–2.0 wt%) is crucial for the catalytic behavior of the 2% Ru–Re/Al2O3 nano-catalysts.The best catalytic properties, in terms of overall activity and stability, were observed for the 2%Ru-0.8%Re/γ-Al2O3 nano-catalyst. The stability of all bimetallic 2% Ru–Re nano-catalysts in catalytic soot oxidation in the presence of oxygen is very high in contrast to the 2% Ru/γ-Al2O3 sample. The presence of rhenium in the catalytic system hinder the formation of large RuO2 agglomerates leading to a better dispersion of active ruthenium phase and a better catalytic performance. The relationship between the catalytic activity of Ru–Re/γ-Al2O3 and the synergetic roles of Ru and Re is discussed.

KW - Bimetallic catalysts

KW - High stability

KW - RuRe nano-catalysts

KW - Soot oxidation

UR - https://www.scopus.com/pages/publications/85114324467

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DO - 10.1007/s11144-021-02048-y

M3 - Article

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SN - 1878-5190

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JO - Reaction Kinetics, Mechanisms and Catalysis

JF - Reaction Kinetics, Mechanisms and Catalysis

IS - 1

ER -

Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method

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Keywords

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