Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method-Reference-Cited by-同舟云学术

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

Published:2021-09-07 Issue:1 Volume:134 Page:221-242
ISSN:1878-5190
Container-title:Reaction Kinetics, Mechanisms and Catalysis
language:en
Short-container-title:Reac Kinet Mech Cat

Author:

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

Abstract

AbstractThe 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.

Funder

FP7 Ideas: European Research Council

Publisher

Springer Science and Business Media LLC

Subject

Physical and Theoretical Chemistry,Catalysis

Link

https://link.springer.com/content/pdf/10.1007/s11144-021-02048-y.pdf

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